1
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Ruta V, Di Liberto G, Moriggi F, Ivanov YP, Divitini G, Bussetti G, Barbera V, Bajada MA, Galimberti M, Pacchioni G, Vilé G. Copper Single Atoms Chelated on Ligand-Modified Carbon for Ullmann-type C-O Coupling. ChemSusChem 2024; 17:e202301529. [PMID: 38050778 DOI: 10.1002/cssc.202301529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/01/2023] [Accepted: 12/04/2023] [Indexed: 12/06/2023]
Abstract
Cross-coupling reactions are of great importance in chemistry due to their ability to facilitate the construction of complex organic molecules. Among these reactions, the Ullmann-type C-O coupling between phenols and aryl halides is particularly noteworthy and useful for preparing diarylethers. However, this reaction typically relies on homogeneous catalysts that rapidly deactivate under harsh reaction conditions. In this study, we introduce a novel heterogeneous catalyst for the Ullmann-type C-O coupling reaction, comprised of isolated Cu atoms chelated to a tetraethylenepentamine-pyrrole ligand that is immobilized on graphite nanoplatelets. The catalytic study reveals the recyclability of the material, and demonstrates the crucial role of the pyrrole linker in stabilizing the Cu sites. The work expands the potential of single-atom catalyst nanoarchitectures and underscores the significance of ligands in stabilizing metals in cationic forms, providing a novel, tailored catalyst for cross-coupling chemistries.
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Affiliation(s)
- Vincenzo Ruta
- Department of Chemistry, Materials, and Chemical Engineering, "Giulio Natta" Politecnico di Milano, Piazza Leonardo da Vinci 32, IT-20133, Milano, Italy
| | - Giovanni Di Liberto
- Department of Materials Science, Università degli Studi di Milano-Bicocca, Via Roberto Cozzi 55, IT-20125, Milano, Italy
| | - Francesco Moriggi
- Department of Chemistry, Materials, and Chemical Engineering, "Giulio Natta" Politecnico di Milano, Piazza Leonardo da Vinci 32, IT-20133, Milano, Italy
| | - Yurii P Ivanov
- Electron Spectroscopy and Nanoscopy, Italian Institute of Technology, Via Morego 30, IT-16163, Genova, Italy
| | - Giorgio Divitini
- Electron Spectroscopy and Nanoscopy, Italian Institute of Technology, Via Morego 30, IT-16163, Genova, Italy
| | - Gianlorenzo Bussetti
- Department of Physics, Politecnico di Milano, Piazza Leonardo da Vinci 32, IT-20133, Milano, Italy
| | - Vincenzina Barbera
- Department of Chemistry, Materials, and Chemical Engineering, "Giulio Natta" Politecnico di Milano, Piazza Leonardo da Vinci 32, IT-20133, Milano, Italy
| | - Mark A Bajada
- Department of Chemistry, Materials, and Chemical Engineering, "Giulio Natta" Politecnico di Milano, Piazza Leonardo da Vinci 32, IT-20133, Milano, Italy
| | - Maurizio Galimberti
- Department of Chemistry, Materials, and Chemical Engineering, "Giulio Natta" Politecnico di Milano, Piazza Leonardo da Vinci 32, IT-20133, Milano, Italy
| | - Gianfranco Pacchioni
- Department of Materials Science, Università degli Studi di Milano-Bicocca, Via Roberto Cozzi 55, IT-20125, Milano, Italy
| | - Gianvito Vilé
- Department of Chemistry, Materials, and Chemical Engineering, "Giulio Natta" Politecnico di Milano, Piazza Leonardo da Vinci 32, IT-20133, Milano, Italy
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2
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Rossi K, Ruiz-Ferrando A, Akl DF, Abalos VG, Heras-Domingo J, Graux R, Hai X, Lu J, Garcia-Gasulla D, López N, Pérez-Ramírez J, Mitchell S. Quantitative Description of Metal Center Organization and Interactions in Single-Atom Catalysts. Adv Mater 2024; 36:e2307991. [PMID: 37757786 DOI: 10.1002/adma.202307991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/22/2023] [Indexed: 09/29/2023]
Abstract
Ultra-high-density single-atom catalysts (UHD-SACs) present unique opportunities for harnessing cooperative effects between neighboring metal centers. However, the lack of tools to establish correlations between the density, types, and arrangements of isolated metal atoms and the support surface properties hinders efforts to engineer advanced material architectures. Here, this work precisely describes the metal center organization in various mono- and multimetallic UHD-SACs based on nitrogen-doped carbon (NC) supports by coupling transmission electron microscopy with tailored machine-learning methods (released as a user-friendly web app) and density functional theory simulations. This approach quantifies the non-negligible presence of multimers with increasing atom density, characterizes the size and shape of these low-nuclearity clusters, and identifies surface atom density criteria to ensure isolation. Further, it provides previously inaccessible experimental insights into coordination site arrangements in the NC host, uncovering a repulsive interaction that influences the disordered distribution of metal centers in UHD-SACs. This observation holds in multimetallic systems, where chemically-specific analysis quantifies the degree of intermixing. These fundamental insights into the materials chemistry of single-atom catalysts are crucial for designing catalytic systems with superior reactivity.
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Affiliation(s)
- Kevin Rossi
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zurich, 8093, Switzerland
| | - Andrea Ruiz-Ferrando
- Institute of Chemical Research of Catalonia, Avenida Països Catalans 16, Tarragona, 43007, Spain
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Carrer de Marcellí Domingo 1, Tarragona, 43007, Spain
| | - Dario Faust Akl
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zurich, 8093, Switzerland
| | | | - Javier Heras-Domingo
- Institute of Chemical Research of Catalonia, Avenida Països Catalans 16, Tarragona, 43007, Spain
| | - Romain Graux
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, Route Cantonale, Lausanne, 1015, Switzerland
| | - Xiao Hai
- Department of Chemistry, National University of Singapore, Science Drive 3, Singapore, 117543, Singapore
| | - Jiong Lu
- Department of Chemistry, National University of Singapore, Science Drive 3, Singapore, 117543, Singapore
- Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, Science Drive 2, Singapore, 117546, Singapore
- Institute for Functional Intelligent Materials, National University of Singapore, Science Drive 2, Singapore, 117544, Singapore
| | - Dario Garcia-Gasulla
- Barcelona Supercomputing Center, Plaça d'Eusebi Güell 1-3, Barcelona, 08034, Spain
| | - Nuria López
- Institute of Chemical Research of Catalonia, Avenida Països Catalans 16, Tarragona, 43007, Spain
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zurich, 8093, Switzerland
| | - Sharon Mitchell
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zurich, 8093, Switzerland
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3
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Wang C, Sombut P, Puntscher L, Jakub Z, Meier M, Pavelec J, Bliem R, Schmid M, Diebold U, Franchini C, Parkinson GS. CO-Induced Dimer Decay Responsible for Gem-Dicarbonyl Formation on a Model Single-Atom Catalyst. Angew Chem Int Ed Engl 2024:e202317347. [PMID: 38294119 DOI: 10.1002/anie.202317347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/11/2024] [Accepted: 01/17/2024] [Indexed: 02/01/2024]
Abstract
The ability to coordinate multiple reactants at the same active site is important for the wide-spread applicability of single-atom catalysis. Model catalysts are ideal to investigate the link between active site geometry and reactant binding, because the structure of single-crystal surfaces can be precisely determined, the adsorbates imaged by scanning tunneling microscopy (STM), and direct comparisons made to density functional theory. In this study, we follow the evolution of Rh1 adatoms and minority Rh2 dimers on Fe3 O4 (001) during exposure to CO using time-lapse STM at room temperature. CO adsorption at Rh1 sites results exclusively in stable Rh1 CO monocarbonyls, because the Rh atom adapts its coordination to create a stable pseudo-square planar environment. Rh1 (CO)2 gem-dicarbonyl species are also observed, but these form exclusively through the breakup of Rh2 dimers via an unstable Rh2 (CO)3 intermediate. Overall, our results illustrate how minority species invisible to area-averaging spectra can play an important role in catalytic systems, and show that the decomposition of dimers or small clusters can be an avenue to produce reactive, metastable configurations in single-atom catalysis.
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Affiliation(s)
- Chunlei Wang
- Institute of Applied Physics, TU Wien, Vienna, 1040, Austria
| | - Panukorn Sombut
- Institute of Applied Physics, TU Wien, Vienna, 1040, Austria
| | - Lena Puntscher
- Institute of Applied Physics, TU Wien, Vienna, 1040, Austria
| | - Zdenek Jakub
- Institute of Applied Physics, TU Wien, Vienna, 1040, Austria
- Central European Institute of Technology (CEITEC), Brno University of Technology, Brno, 612 00, Czechia
| | - Matthias Meier
- Institute of Applied Physics, TU Wien, Vienna, 1040, Austria
- Faculty of Physics, Center for Computational Materials Science, University of Vienna, Vienna, 1090, Austria
| | - Jiri Pavelec
- Institute of Applied Physics, TU Wien, Vienna, 1040, Austria
| | - Roland Bliem
- Advanced Research Center for Nanolithography, 1098XG, Amsterdam, Netherlands
| | - Michael Schmid
- Institute of Applied Physics, TU Wien, Vienna, 1040, Austria
| | - Ulrike Diebold
- Institute of Applied Physics, TU Wien, Vienna, 1040, Austria
| | - Cesare Franchini
- Faculty of Physics, Center for Computational Materials Science, University of Vienna, Vienna, 1090, Austria
- Dipartimento di Fisica e Astronomia, Università di Bologna, Bologna, 40127, Italy
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4
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Li Y, Zuo S, Wei F, Chen C, Zhang G, Zhao X, Wu Z, Wang S, Zhou W, Rueping M, Han Y, Zhang H. Boosted hydrogen evolution kinetics of heteroatom-doped carbons with isolated Zn as an accelerant. Proc Natl Acad Sci U S A 2024; 121:e2315362121. [PMID: 38261614 PMCID: PMC10835066 DOI: 10.1073/pnas.2315362121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 12/09/2023] [Indexed: 01/25/2024] Open
Abstract
Carbon-based single-atom catalysts, a promising candidate in electrocatalysis, offer insights into electron-donating effects of metal center on adjacent atoms. Herein, we present a practical strategy to rationally design a model catalyst with a single zinc (Zn) atom coordinated with nitrogen and sulfur atoms in a multilevel carbon matrix. The Zn site exhibits an atomic interface configuration of ZnN4S1, where Zn's electron injection effect enables thermal-neutral hydrogen adsorption on neighboring atoms, pushing the activity boundaries of carbon electrocatalysts toward electrochemical hydrogen evolution to an unprecedented level. Experimental and theoretical analyses confirm the low-barrier Volmer-Tafel mechanism of proton reduction, while the multishell hollow structures facilitate the hydrogen evolution even at high current intensities. This work provides insights for understanding the actual active species during hydrogen evolution reaction and paves the way for designing high-performance electrocatalysts.
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Affiliation(s)
- Yang Li
- King Abdullah University of Science and Technology Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal23955, Saudi Arabia
| | - Shouwei Zuo
- King Abdullah University of Science and Technology Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal23955, Saudi Arabia
| | - Fen Wei
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou350116, People’s Republic of China
| | - Cailing Chen
- Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal23955, Saudi Arabia
| | - Guikai Zhang
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing100049, People’s Republic of China
| | - Xiaojuan Zhao
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing100049, People’s Republic of China
| | - Zhipeng Wu
- King Abdullah University of Science and Technology Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal23955, Saudi Arabia
| | - Sibo Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou350116, People’s Republic of China
| | - Wei Zhou
- Department of Applied Physics, Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Faculty of Science, Tianjin University, Tianjin300072, People’s Republic of China
| | - Magnus Rueping
- King Abdullah University of Science and Technology Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal23955, Saudi Arabia
| | - Yu Han
- Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal23955, Saudi Arabia
| | - Huabin Zhang
- King Abdullah University of Science and Technology Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal23955, Saudi Arabia
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5
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Wang M, Hu Y, Pu J, Zi Y, Huang W. Emerging Xene-Based Single-Atom Catalysts: Theory, Synthesis, and Catalytic Applications. Adv Mater 2024; 36:e2303492. [PMID: 37328779 DOI: 10.1002/adma.202303492] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/07/2023] [Indexed: 06/18/2023]
Abstract
In recent years, the emergence of novel 2D monoelemental materials (Xenes), e.g., graphdiyne, borophene, phosphorene, antimonene, bismuthene, and stanene, has exhibited unprecedented potentials for their versatile applications as well as addressing new discoveries in fundamental science. Owing to their unique physicochemical, optical, and electronic properties, emerging Xenes have been regarded as promising candidates in the community of single-atom catalysts (SACs) as single-atom active sites or support matrixes for significant improvement in intrinsic activity and selectivity. In order to comprehensively understand the relationships between the structure and property of Xene-based SACs, this review represents a comprehensive summary from theoretical predictions to experimental investigations. Firstly, theoretical calculations regarding both the anchoring of Xene-based single-atom active sites on versatile support matrixes and doping/substituting heteroatoms at Xene-based support matrixes are briefly summarized. Secondly, controlled synthesis and precise characterization are presented for Xene-based SACs. Finally, current challenges and future opportunities for the development of Xene-based SACs are highlighted.
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Affiliation(s)
- Mengke Wang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - Yi Hu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - Junmei Pu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - You Zi
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - Weichun Huang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
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6
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Yang Q, Surin I, Geiger J, Eliasson H, Agrachev M, Kondratenko VA, Zanina A, Krumeich F, Jeschke G, Erni R, Kondratenko EV, López N, Pérez-Ramírez J. Lattice-Stabilized Chromium Atoms on Ceria for N 2O Synthesis. ACS Catal 2023; 13:15977-15990. [PMID: 38125976 PMCID: PMC10728900 DOI: 10.1021/acscatal.3c04463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 12/23/2023]
Abstract
The development of selective catalysts for direct conversion of ammonia into nitrous oxide, N2O, will circumvent the conventional five-step manufacturing process and enable its wider utilization in oxidation catalysis. Deviating from commonly accepted catalyst design principles for this reaction, reliant on manganese oxide, we herein report an efficient system comprised of isolated chromium atoms (1 wt %) stabilized in the ceria lattice by coprecipitation. The latter, in contrast to a simple impregnation approach, ensures firm metal anchoring and results in stable and selective N2O production over 100 h on stream up to 79% N2O selectivity at full NH3 conversion. Raman, electron paramagnetic resonance, and in situ UV-vis spectroscopies reveal that chromium incorporation enhances the density of oxygen vacancies and the rate of their generation and healing. Accordingly, temporal analysis of products, kinetic studies, and atomistic simulations show lattice oxygen of ceria to directly participate in the reaction, establishing the cocatalytic role of the carrier. Coupled with the dynamic restructuring of chromium sites to stabilize intermediates of N2O formation, these factors enable catalytic performance on par with or exceeding benchmark systems. These findings demonstrate how nanoscale engineering can elevate a previously overlooked metal into a highly competitive catalyst for selective ammonia oxidation to N2O, paving the way toward industrial implementation.
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Affiliation(s)
- Qingxin Yang
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| | - Ivan Surin
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| | - Julian Geiger
- Institute
of Chemical Research of Catalonia (ICIQ-CERCA), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Henrik Eliasson
- Electron
Microscopy Center, Empa - Swiss Federal
Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Mikhail Agrachev
- Laboratory
of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093 Zürich, Switzerland
| | - Vita A. Kondratenko
- Advanced
Methods for Applied Catalysis, Leibniz-Institut
für Katalyse e. V., Albert Einstein-Str. 29a, 18059 Rostock, Germany
| | - Anna Zanina
- Advanced
Methods for Applied Catalysis, Leibniz-Institut
für Katalyse e. V., Albert Einstein-Str. 29a, 18059 Rostock, Germany
| | - Frank Krumeich
- Laboratory
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| | - Gunnar Jeschke
- Laboratory
of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093 Zürich, Switzerland
| | - Rolf Erni
- Electron
Microscopy Center, Empa - Swiss Federal
Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Evgenii V. Kondratenko
- Advanced
Methods for Applied Catalysis, Leibniz-Institut
für Katalyse e. V., Albert Einstein-Str. 29a, 18059 Rostock, Germany
| | - Núria López
- Institute
of Chemical Research of Catalonia (ICIQ-CERCA), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Javier Pérez-Ramírez
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
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7
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Laan PCM, Bobylev EO, de Zwart FJ, Vleer JA, Troglia A, Bliem R, Rothenberg G, Reek JNH, Yan N. Tailoring Secondary Coordination Sphere Effects in Single-metal-site Catalysts by Surface Immobilization of Supramolecular Cages. Chemistry 2023; 29:e202301901. [PMID: 37874010 DOI: 10.1002/chem.202301901] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Indexed: 10/25/2023]
Abstract
Controlling the coordination sphere of heterogeneous single-metal-site catalysts is a powerful strategy for fine-tuning their catalytic properties but is fairly difficult to achieve. To address this problem, we immobilized supramolecular cages where the primary- and secondary coordination sphere are controlled by ligand design. The kinetics of these catalysts were studied in a model reaction, the hydrolysis of ammonia borane, over a temperature range using fast and precise online measurements generating high-precision Arrhenius plots. The results show how catalytic properties can be enhanced by placing a well-defined reaction pocket around the active site. Our fine-tuning yielded a catalyst with such performance that the reaction kinetics are diffusion-controlled rather than chemically controlled.
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Affiliation(s)
- Petrus C M Laan
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam (The, Netherlands
| | - Eduard O Bobylev
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam (The, Netherlands
| | - Felix J de Zwart
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam (The, Netherlands
| | - Joppe A Vleer
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam (The, Netherlands
| | - Alessandro Troglia
- Advanced Research Center for Nanolithography (ARCNL), Science Park 106, 1098XG, Amsterdam (The, Netherlands
| | - Roland Bliem
- Advanced Research Center for Nanolithography (ARCNL), Science Park 106, 1098XG, Amsterdam (The, Netherlands
| | - Gadi Rothenberg
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam (The, Netherlands
| | - Joost N H Reek
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam (The, Netherlands
| | - Ning Yan
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam (The, Netherlands
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, 430072, China
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8
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da Silva MAR, Tarakina NV, Filho JBG, Cunha CS, Rocha GFSR, Diab GAA, Ando RA, Savateev O, Agirrezabal-Telleria I, Silva IF, Stolfi S, Ghigna P, Fagnoni M, Ravelli D, Torelli P, Braglia L, Teixeira IF. Single-Atoms on Crystalline Carbon Nitrides for Selective C─H Photooxidation: A Bridge to Achieve Homogeneous Pathways in Heterogeneous Materials. Adv Mater 2023; 35:e2304152. [PMID: 37986204 DOI: 10.1002/adma.202304152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 09/15/2023] [Indexed: 11/22/2023]
Abstract
Single-atom catalysis is a field of paramount importance in contemporary science due to its exceptional ability to combine the domains of homogeneous and heterogeneous catalysis. Iron and manganese metalloenzymes are known to be effective in C─H oxidation reactions in nature, inspiring scientists to mimic their active sites in artificial catalytic systems. Herein, a simple and versatile cation exchange method is successfully employed to stabilize low-cost iron and manganese single-atoms in poly(heptazine imides) (PHI). The resulting materials are employed as photocatalysts for toluene oxidation, demonstrating remarkable selectivity toward benzaldehyde. The protocol is then extended to the selective oxidation of different substrates, including (substituted) alkylaromatics, benzyl alcohols, and sulfides. Detailed mechanistic investigations revealed that iron- and manganese-containing photocatalysts work through a similar mechanism via the formation of high-valent M═O species. Operando X-ray absorption spectroscopy (XAS) is employed to confirm the formation of high-valent iron- and manganese-oxo species, typically found in metalloenzymes involved in highly selective C─H oxidations.
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Affiliation(s)
- Marcos A R da Silva
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil
| | - Nadezda V Tarakina
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, D-14476, Potsdam, Germany
| | - José B G Filho
- Department of Chemistry, ICEx, Federal University of Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Carla S Cunha
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil
| | - Guilherme F S R Rocha
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil
| | - Gabriel A A Diab
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil
| | - Rômulo Augusto Ando
- Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, 05508-000, Brazil
| | - Oleksandr Savateev
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, D-14476, Potsdam, Germany
| | - Iker Agirrezabal-Telleria
- Department of Chemical and Environmental Engineering of the Bilbao Engineering School, University of Basque Country (UPV/EHU), Plaza Torres Quevedo 1, Bilbao, 48013, Spain
| | - Ingrid F Silva
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, D-14476, Potsdam, Germany
| | - Sara Stolfi
- Department of Chemistry, University of Pavia, viale Taramelli 12, Pavia, 27100, Italy
| | - Paolo Ghigna
- Department of Chemistry, University of Pavia, viale Taramelli 12, Pavia, 27100, Italy
| | - Maurizio Fagnoni
- Department of Chemistry, University of Pavia, viale Taramelli 12, Pavia, 27100, Italy
| | - Davide Ravelli
- Department of Chemistry, University of Pavia, viale Taramelli 12, Pavia, 27100, Italy
| | - Piero Torelli
- TASC Laboratory, CNR-IOM, Istituto Officina dei Materiali, Trieste, 34149, Italy
| | - Luca Braglia
- TASC Laboratory, CNR-IOM, Istituto Officina dei Materiali, Trieste, 34149, Italy
| | - Ivo F Teixeira
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13565-905, Brazil
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9
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Kruczała K, Neubert S, Dhaka K, Mitoraj D, Jánošíková P, Adler C, Krivtsov I, Patzsch J, Bloh J, Biskupek J, Kaiser U, Hocking RK, Caspary Toroker M, Beranek R. Enhancing Photocatalysis: Understanding the Mechanistic Diversity in Photocatalysts Modified with Single-Atom Catalytic Sites. Adv Sci (Weinh) 2023; 10:e2303571. [PMID: 37888857 PMCID: PMC10724417 DOI: 10.1002/advs.202303571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/16/2023] [Indexed: 10/28/2023]
Abstract
Surface modification of heterogeneous photocatalysts with single-atom catalysts (SACs) is an attractive approach for achieving enhanced photocatalytic performance. However, there is limited knowledge of the mechanism of photocatalytic enhancement in SAC-modified photocatalysts, which makes the rational design of high-performance SAC-based photocatalysts challenging. Herein, a series of photocatalysts for the aerobic degradation of pollutants based on anatase TiO2 modified with various low-cost, non-noble SACs (vanadate, Cu, and Fe ions) is reported. The most active SAC-modified photocatalysts outperform TiO2 modified with the corresponding metal oxide nanoparticles and state-of-the-art benchmark photocatalysts such as platinized TiO2 and commercial P25 powders. A combination of in situ electron paramagnetic resonance spectroscopy and theoretical calculations reveal that the best-performing photocatalysts modified with Cu(II) and vanadate SACs exhibit significant differences in the mechanism of activity enhancement, particularly with respect to the rate of oxygen reduction. The superior performance of vanadate SAC-modified TiO2 is found to be related to the shallow character of the SAC-induced intragap states, which allows for both the effective extraction of photogenerated electrons and fast catalytic turnover in the reduction of dioxygen, which translates directly into diminished recombination. These results provide essential guidelines for developing efficient SAC-based photocatalysts.
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Affiliation(s)
- Krzysztof Kruczała
- Faculty of ChemistryJagiellonian University in KrakówGronostajowa 2/C1‐21Krakow30–387Poland
| | - Susann Neubert
- Faculty of Chemistry and BiochemistryRuhr University BochumUniversitätsstr. 15044780BochumGermany
| | - Kapil Dhaka
- Department of Materials Science and EngineeringTechnion – Israel Institute of TechnologyHaifa3200003Israel
| | - Dariusz Mitoraj
- Institute of ElectrochemistryUlm UniversityAlbert‐Einstein‐Allee 4789069UlmGermany
| | - Petra Jánošíková
- Faculty of Chemistry and BiochemistryRuhr University BochumUniversitätsstr. 15044780BochumGermany
| | - Christiane Adler
- Institute of ElectrochemistryUlm UniversityAlbert‐Einstein‐Allee 4789069UlmGermany
| | - Igor Krivtsov
- Institute of ElectrochemistryUlm UniversityAlbert‐Einstein‐Allee 4789069UlmGermany
- Department of Chemical and Environmental EngineeringUniversity of OviedoOviedo33006Spain
| | - Julia Patzsch
- Chemical Technology GroupDECHEMA Research InstituteTheodor‐Heuss‐Allee 2560486Frankfurt am MainGermany
| | - Jonathan Bloh
- Chemical Technology GroupDECHEMA Research InstituteTheodor‐Heuss‐Allee 2560486Frankfurt am MainGermany
| | - Johannes Biskupek
- Central Facility of Electron MicroscopyElectron Microscopy Group of Material ScienceUniversity of UlmD‐89081UlmGermany
| | - Ute Kaiser
- Central Facility of Electron MicroscopyElectron Microscopy Group of Material ScienceUniversity of UlmD‐89081UlmGermany
| | - Rosalie K. Hocking
- Department of Chemistry and BiotechnologyARC Training Centre for Surface Engineering for Advanced Material SEAMSwinburne University of TechnologyHawthornVIC3122Australia
| | - Maytal Caspary Toroker
- Department of Materials Science and EngineeringTechnion – Israel Institute of TechnologyHaifa3200003Israel
- The Nancy and Stephen Grand Technion Energy ProgramTechnion – Israel Institute of TechnologyHaifa3200003Israel
| | - Radim Beranek
- Institute of ElectrochemistryUlm UniversityAlbert‐Einstein‐Allee 4789069UlmGermany
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10
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Di Liberto G, Pacchioni G. Modeling Single-Atom Catalysis. Adv Mater 2023; 35:e2307150. [PMID: 37749881 DOI: 10.1002/adma.202307150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/17/2023] [Indexed: 09/27/2023]
Abstract
Electronic structure calculations represent an essential complement of experiments to characterize single-atom catalysts (SACs), consisting of isolated metal atoms stabilized on a support, but also to predict new catalysts. However, simulating SACs with quantum chemistry approaches is not as simple as often assumed. In this work, the essential factors that characterize a reliable simulation of SACs activity are examined. The Perspective focuses on the importance of precise atomistic characterization of the active site, since even small changes in the metal atom's surroundings can result in large changes in reactivity. The dynamical behavior and stability of SACs under working conditions, as well as the importance of adopting appropriate methods to solve the Schrödinger equation for a quantitative evaluation of reaction energies are addressed. The Perspective also focuses on the relevance of the model adopted. For electrocatalysis this must include the effects of the solvent, the presence of electrolytes, the pH, and the external potential. Finally, it is discussed how the similarities between SACs and coordination compounds may result in reaction intermediates that usually are not observed on metal electrodes. When these aspects are not adequately considered, the predictive power of electronic structure calculations is quite limited.
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Affiliation(s)
- Giovanni Di Liberto
- Dipartimento di Scienza dei Materiali, Università degli studi di Milano Bicocca, Via R. Cozzi 55, Milano, 20125, Italy
| | - Gianfranco Pacchioni
- Dipartimento di Scienza dei Materiali, Università degli studi di Milano Bicocca, Via R. Cozzi 55, Milano, 20125, Italy
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11
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Gammelgaard JJ, Sun Z, Vestergaard AK, Zhao S, Li Z, Lock N, Daasbjerg K, Bagger A, Rossmeisl J, Lauritsen JV. A Monolayer Carbon Nitride on Au(111) with a High Density of Single Co Sites. ACS Nano 2023; 17:17489-17498. [PMID: 37643209 DOI: 10.1021/acsnano.3c05996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Carbon nitrides that expose atomically dispersed single-atom metals in the form of M-N-C (M = metal) sites are attractive earth-abundant catalyst materials that have been demonstrated in electrocatalytic conversion reactions. The catalytic performance is determined by the abundance of N-doped sites and the type of metal coordination to N, but challenges remain to synthesize pristine carbon nitrides with a high concentration of the most active sites and prepare homogeneously doped materials that allow for in-depth characterization of the M-N-C sites and quantitative evaluation of their catalytic performance. Herein, we have synthesized and characterized a well-defined monolayer carbon nitride phase on a Au(111) surface that exposes an exceedingly high concentration of Co-N4 sites. The crystalline monolayer carbon nitride, whose formation is controlled by an on-surface reaction between Co atoms and melamine on Au(111), is characterized by a dense array of 4- and 6-fold N-terminated pockets, whereof only the 4-fold pocket is found to be holding Co atoms. Through detailed characterization using scanning tunneling microscopy, X-ray photoelectron spectroscopy, and density functional theory modeling, we determine the atomic structure and chemical state of the carbon nitride network. Furthermore, we show that the monolayer carbon nitride structure is stable and reactive toward the electrocatalytic oxygen reduction reaction in alkaline electrolyte, with a quantitative performance metric that significantly exceeds comparable M-N-C-based catalyst types. The work demonstrates that high-density active catalytic sites can be created using common precursor materials, and the formed networks themselves offer an excellent platform for onward studies addressing the characteristics of M-N-C sites.
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Affiliation(s)
| | - Zhaozong Sun
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, 8000 Aarhus C, Denmark
| | - Anders K Vestergaard
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, 8000 Aarhus C, Denmark
| | - Siqi Zhao
- Department of Chemistry, Aarhus University, 8000 Aarhus C, Denmark
- Novo Nordisk Foundation (NNF) CO2 Research Center, Aarhus University, 8000 Aarhus C, Denmark
| | - Zheshen Li
- Department of Physics and Astronomy, Aarhus University, 8000 Aarhus C, Denmark
| | - Nina Lock
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, 8000 Aarhus C, Denmark
- Novo Nordisk Foundation (NNF) CO2 Research Center, Aarhus University, 8000 Aarhus C, Denmark
- Department of Biological and Chemical Engineering, Aarhus University, 8200 Aarhus N, Denmark
| | - Kim Daasbjerg
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, 8000 Aarhus C, Denmark
- Department of Chemistry, Aarhus University, 8000 Aarhus C, Denmark
- Novo Nordisk Foundation (NNF) CO2 Research Center, Aarhus University, 8000 Aarhus C, Denmark
| | - Alexander Bagger
- Department of Chemistry, University of Copenhagen, 2100 Copenhagen, Denmark
- Department of Physics, Technical University of Denmark, 2800 Lyngby, Denmark
| | - Jan Rossmeisl
- Department of Chemistry, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Jeppe V Lauritsen
- Interdisciplinary Nanoscience Center (iNANO), Aarhus University, 8000 Aarhus C, Denmark
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12
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Qu W, Luo M, Tang Z, Zhong T, Zhao H, Hu L, Xia D, Tian S, Shu D, He C. Accelerated Catalytic Ozonation in a Mesoporous Carbon-Supported Atomic Fe-N 4 Sites Nanoreactor: Confinement Effect and Resistance to Poisoning. Environ Sci Technol 2023; 57:13205-13216. [PMID: 37487235 DOI: 10.1021/acs.est.2c08101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
The design of a micro-/nanoreactor is of great significance for catalytic ozonation, which can achieve effective mass transfer and expose powerful reaction species. Herein, the mesoporous carbon with atomic Fe-N4 sites embedded in the ordered carbon nanochannels (Fe-N4/CMK-3) was synthesized by the hard-template method. Fe-N4/CMK-3 can be employed as nanoreactors with preferred electronic and geometric catalytic microenvironments for the internal catalytic ozonation of CH3SH. During the CH3SH oxidation process, the mass transfer coefficient of the Fe-N4/CMK-3 confined system with sufficient O3 transfer featured a level of at least 1.87 × 10-5, which is 34.6 times that of the Fe-N4/C-Si unconfined system. Detailed experimental studies and theoretical calculations demonstrated that the anchored atomic Fe-N4 sites and nanoconfinement effects regulated the local electronic structure of the catalyst and promoted the activation of O3 molecules to produce atomic oxygen species (AOS) and reactive oxygen species (ROS), eventually achieving efficient oxidation of CH3SH into CO2/SO42-. Benefiting from the high diffusion rate and the augmentation of AOS/ROS, Fe-N4/CMK-3 exhibited an excellent poisoning tolerance, along with high catalytic durability. This contribution provides the proof-of-concept strategy for accelerating catalytic ozonation of sulfur-containing volatile organic compounds (VOCs) by combining confined catalysis and atomic catalysts and can be extended to the purification of other gaseous pollutants.
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Affiliation(s)
- Wei Qu
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Manhui Luo
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Zhuoyun Tang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Tao Zhong
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Huinan Zhao
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Lingling Hu
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Dehua Xia
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - Shuanghong Tian
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - Dong Shu
- School of Chemistry, South China Normal University, Guangzhou 510006, China
| | - Chun He
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
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13
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Yang F, Song P, Ge X, Wang Y, Gunji T, Zhang W, Zhao X, Xu W. Operando analysis reveals potential-driven in situ formation of single-Fe-atom electrocatalysts for green production of ammonia. Proc Natl Acad Sci U S A 2023; 120:e2301011120. [PMID: 37307468 DOI: 10.1073/pnas.2301011120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 05/03/2023] [Indexed: 06/14/2023] Open
Abstract
As a sustainable approach for N2 fixation, electrocatalytic N2 reduction reaction (N2RR) to produce ammonia (NH3) is highly desirable with a precise understanding to the structure-activity relationship of electrocatalysts. Here, firstly, we obtain a novel carbon-supported oxygen-coordinated single-Fe-atom catalyst for highly efficient production of ammonia from electrocatalytic N2RR. Based on such new type of N2RR electrocatalyst, by combining operando X-ray absorption spectra (XAS) with density function theory calculation, we reveal significantly that the as-prepared active coordination structure undergoes a potential-driven two-step restructuring, firstly from FeSAO4(OH)1a to FeSAO4(OH)1a'(OH)1b with the adsorption of another -OH on FeSA at open-circuit potential (OCP) of 0.58 VRHE, and subsequently restructuring from FeSAO4(OH)1a'(OH)1b to FeSAO3(OH)1a″ due to the breaking of one Fe-O bond and the dissociation of one -OH at working potentials for final electrocatalytic process of N2RR, thus revealing the first potential-induced in situ formation of the real electrocatalytic active sites to boost the conversion of N2 to NH3. Moreover, the key intermediate of Fe-NNHx was detected experimentally by both operando XAS and in situ attenuated total reflection-surface-enhanced infrared absorption spectra (ATR-SEIRAS), indicating the alternating mechanism followed by N2RR on such catalyst. The results indicate the necessity of considering the potential-induced restructuring of the active sites on all kinds of electrocatalysts for such as highly efficient ammonia production from N2RR. It also paves a new way for a precise understanding to the structure-activity relationship of a catalyst and helps the design of highly efficient catalysts.
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Affiliation(s)
- Fa Yang
- State Key Laboratory of Electroanalytical Chemistry and Jilin Province Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences 130022, Changchun, P.R. China
- University of Science and Technology of China 230026, Anhui, China
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University 321004, Jinhua, Zhejiang, China
| | - Ping Song
- State Key Laboratory of Electroanalytical Chemistry and Jilin Province Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences 130022, Changchun, P.R. China
| | - Xin Ge
- Key Laboratory of Automobile Materials MOE, and School of Materials Science & Engineering, and Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, and Electron Microscopy Center, and International Center of Future Science, Jilin University 130012, Changchun, Jilin, China
| | - Yan Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University 321004, Jinhua, Zhejiang, China
| | - Takao Gunji
- Innovation Research Center for Fuel Cells, University of Electro-Communications 182-8585, Chofugaoka, Chofu, Tokyo, Japan
| | - Wei Zhang
- Key Laboratory of Automobile Materials MOE, and School of Materials Science & Engineering, and Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, and Electron Microscopy Center, and International Center of Future Science, Jilin University 130012, Changchun, Jilin, China
| | - Xiao Zhao
- Key Laboratory of Automobile Materials MOE, and School of Materials Science & Engineering, and Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, and Electron Microscopy Center, and International Center of Future Science, Jilin University 130012, Changchun, Jilin, China
- Innovation Research Center for Fuel Cells, University of Electro-Communications 182-8585, Chofugaoka, Chofu, Tokyo, Japan
| | - Weilin Xu
- State Key Laboratory of Electroanalytical Chemistry and Jilin Province Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences 130022, Changchun, P.R. China
- University of Science and Technology of China 230026, Anhui, China
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14
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Xu W, Zhong H, Wu Y, Qin Y, Jiao L, Sha M, Su R, Tang Y, Zheng L, Hu L, Zhang S, Beckman SP, Gu W, Yang Y, Guo S, Zhu C. Photoexcited Ru single-atomic sites for efficient biomimetic redox catalysis. Proc Natl Acad Sci U S A 2023; 120:e2220315120. [PMID: 37186847 PMCID: PMC10214184 DOI: 10.1073/pnas.2220315120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/28/2023] [Indexed: 05/17/2023] Open
Abstract
The unsatisfactory catalytic activity of nanozymes owing to their inefficient electron transfer (ET) is the major challenge in biomimetic catalysis-related biomedical applications. Inspired by the photoelectron transfers in natural photoenzymes, we herein report a photonanozyme of single-atom Ru anchored on metal-organic frameworks (UiO-67-Ru) for achieving photoenhanced peroxidase (POD)-like activity. We demonstrate that the atomically dispersed Ru sites can realize high photoelectric conversion efficiency, superior POD-like activity (7.0-fold photoactivity enhancement relative to that of UiO-67), and good catalytic specificity. Both in situ experiments and theoretical calculations reveal that photoelectrons follow the cofactor-mediated ET process of enzymes to promote the production of active intermediates and the release of products, demonstrating more favorable thermodynamics and kinetics in H2O2 reduction. Taking advantage of the unique interaction of the Zr-O-P bond, we establish a UiO-67-Ru-based immunoassay platform for the photoenhanced detection of organophosphorus pesticides.
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Affiliation(s)
- Weiqing Xu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan430079, P.R. China
| | - Hong Zhong
- School of Mechanical and Materials Engineering, Washington State University, Pullman, WA99164
| | - Yu Wu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan430079, P.R. China
| | - Ying Qin
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan430079, P.R. China
| | - Lei Jiao
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan430079, P.R. China
| | - Meng Sha
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan430079, P.R. China
| | - Rina Su
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan430079, P.R. China
| | - Yinjun Tang
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan430079, P.R. China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing100049, P.R. China
| | - Liuyong Hu
- School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan430205, P.R. China
| | - Shipeng Zhang
- School of Materials Science and Engineering, Peking University, Beijing100871, P.R. China
| | - Scott P. Beckman
- School of Mechanical and Materials Engineering, Washington State University, Pullman, WA99164
| | - Wenling Gu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan430079, P.R. China
| | - Yong Yang
- State Key Laboratory of Solidification Processing, Center of Advanced Lubrication and Seal Materials, Northwestern Polytechnical University, Xi’an710072, P.R. China
| | - Shaojun Guo
- School of Materials Science and Engineering, Peking University, Beijing100871, P.R. China
| | - Chengzhou Zhu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan430079, P.R. China
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15
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Faust Akl D, Giannakakis G, Ruiz-Ferrando A, Agrachev M, Medrano-García JD, Guillén-Gosálbez G, Jeschke G, Clark AH, Safonova OV, Mitchell S, López N, Pérez-Ramírez J. Reaction-Induced Formation of Stable Mononuclear Cu(I)Cl Species on Carbon for Low-Footprint Vinyl Chloride Production. Adv Mater 2023:e2211464. [PMID: 36964929 DOI: 10.1002/adma.202211464] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 03/02/2023] [Indexed: 05/13/2023]
Abstract
Copper catalysts are attractive candidates for Hg-free vinyl chloride monomer (VCM) production via acetylene hydrochlorination due to their non-toxic nature and high stability. However, the optimal architecture for Cu-based catalysts at the nanoscale is not yet fully understood. To address this gap, the metal precursor and the annealing temperature are modified to prepare copper nanoparticles or single atoms, either in chlorinated or ligand-free form, on an unmodified carbon support. Evaluation in the reaction reveals a remarkable convergence of the performance of all materials to the stable VCM productivity of the single-atom catalyst. In-depth characterization by advanced microscopy, quasi in situ and operando spectroscopy, and simulations uncover a reaction-induced formation of low-valent, single atom Cu(I)Cl site motif, regardless of the initial nanostructure. Various surface oxygen groups promote nanoparticle redispersion by stabilizing single-atom CuClx species. The anchoring site structure does not strongly influence the acetylene adsorption energy or the crucial role they play in stabilizing key reaction intermediates. A life-cycle assessment demonstrates the potential environmental benefits of copper catalysts over state-of-the-art alternatives. This work contributes to a better understanding of optimal metal speciation and highlights the sustainability of Cu-based catalysts for VCM production.
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Affiliation(s)
- Dario Faust Akl
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, Zurich, 8093, Switzerland
| | - Georgios Giannakakis
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, Zurich, 8093, Switzerland
| | - Andrea Ruiz-Ferrando
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, Tarragona, 43007, Spain
- Department of Physical and Inorganic Chemistry, Universitat Rovira i Virgili, Marcel·lí Domingo s/n, Tarragona, 43007, Spain
| | - Mikhail Agrachev
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, Zurich, 8093, Switzerland
| | - Juan D Medrano-García
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, Zurich, 8093, Switzerland
| | - Gonzalo Guillén-Gosálbez
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, Zurich, 8093, Switzerland
| | - Gunnar Jeschke
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, Zurich, 8093, Switzerland
| | - Adam H Clark
- Paul Scherrer Institute, Forschungsstrasse 111, Villigen PSI, 5232, Switzerland
| | - Olga V Safonova
- Paul Scherrer Institute, Forschungsstrasse 111, Villigen PSI, 5232, Switzerland
| | - Sharon Mitchell
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, Zurich, 8093, Switzerland
| | - Núria López
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, Tarragona, 43007, Spain
| | - Javier Pérez-Ramírez
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, Zurich, 8093, Switzerland
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16
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Surin I, Tang Z, Geiger J, Damir S, Eliasson H, Agrachev M, Krumeich F, Mitchell S, Kondratenko VA, Kondratenko EV, Jeschke G, Erni R, López N, Pérez-Ramírez J. Low-Valent Manganese Atoms Stabilized on Ceria for Nitrous Oxide Synthesis. Adv Mater 2023:e2211260. [PMID: 36863934 DOI: 10.1002/adma.202211260] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 02/17/2023] [Indexed: 05/03/2023]
Abstract
Nitrous oxide, N2 O, exhibits unique reactivity in oxidation catalysis, but the high manufacturing costs limit its prospective uses. Direct oxidation of ammonia, NH3 , to N2 O can ameliorate this issue but its implementation is thwarted by suboptimal catalyst selectivity and stability, and the lack of established structure-performance relationships. Systematic and controlled material nanostructuring offers an innovative approach for advancement in catalyst design. Herein low-valent manganese atoms stabilized on ceria, CeO2 , are discovered as the first stable catalyst for NH3 oxidation to N2 O, exhibiting two-fold higher productivity than the state-of-the-art. Detailed mechanistic, computational and kinetic studies reveal CeO2 as the mediator of oxygen supply, while undercoordinated manganese species activate O2 and facilitate N2 O evolution via NN bond formation between nitroxyl, HNO, intermediates. Synthesis via simple impregnation of a small metal quantity (1 wt%) predominantly generates isolated manganese sites, while full atomic dispersion is achieved upon redispersion of sporadic oxide nanoparticles during reaction, as confirmed by advanced microscopic analysis and electron paramagnetic resonance spectroscopy. Subsequently, manganese speciation is maintained, and no deactivation is observed over 70 h on stream. CeO2 -supported isolated transition metals emerge as a novel class of materials for N2 O production, encouraging future studies to evaluate their potential in selective catalytic oxidations at large.
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Affiliation(s)
- Ivan Surin
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Zhenchen Tang
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Julian Geiger
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, Tarragona, 43007, Spain
| | - Suyash Damir
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Henrik Eliasson
- Electron Microscopy Center, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf, 8600, Switzerland
| | - Mikhail Agrachev
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Sharon Mitchell
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Vita A Kondratenko
- Department of Catalyst Discovery and Reaction Engineering, Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Evgenii V Kondratenko
- Department of Catalyst Discovery and Reaction Engineering, Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Gunnar Jeschke
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Rolf Erni
- Electron Microscopy Center, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf, 8600, Switzerland
| | - Núria López
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, Tarragona, 43007, Spain
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
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17
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Chen Q, Zhang M, Huang H, Dong C, Dai X, Feng G, Lin L, Sun D, Yang D, Xie L, Chen Y, Guo J, Jing X. Single Atom-Doped Nanosonosensitizers for Mutually Optimized Sono/Chemo-Nanodynamic Therapy of Triple Negative Breast Cancer. Adv Sci (Weinh) 2023; 10:e2206244. [PMID: 36646509 PMCID: PMC9951334 DOI: 10.1002/advs.202206244] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/11/2022] [Indexed: 05/19/2023]
Abstract
Sonodynamic therapy (SDT) represents a promising therapeutic modality for treating breast cancer, which relies on the generation of abundant reactive oxygen species (ROS) to induce oxidative stress damage. However, mutant breast cancers, especially triple-negative breast cancer (TNBC), have evolved to acquire specific antioxidant defense functions, significantly limiting the killing efficiency of SDT. Herein, the authors have engineered a distinct single copper atom-doped titanium dioxide (Cu/TiO2 ) nanosonosensitizer with highly catalytic and sonosensitive activities for synergistic chemodynamic and sonodynamic treatment of TNBC. The single-atom Cu is anchored on the most stable Ti vacancies of hollow TiO2 sonosensitizers, which not only substantially improved the catalytic activity of Cu-mediated Fenton-like reaction, but also considerably augmented the sonodynamic efficiency of TiO2 by facilitating the separation of electrons (e- ) and holes (h+ ). Both the in vitro and in vivo studies demonstrate that the engineered single atom-doped nanosonosensitizers effectively achieved the significantly inhibitory effect of TNBC, providing a therapeutic paradigm for non-invasive and safe tumor elimination through the mutual process of sono/chemo-nanodynamic therapy based on multifunctional single-atom nanosonosensitizers.
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Affiliation(s)
- Qiqing Chen
- Department of UltrasonographyHainan General Hospital/Hainan Affiliated Hospital of Hainan Medical UniversityHaikou570311P. R. China
| | - Min Zhang
- Department of UltrasonographyHainan General Hospital/Hainan Affiliated Hospital of Hainan Medical UniversityHaikou570311P. R. China
| | - Hui Huang
- Materdicine LabSchool of Life SciencesShanghai UniversityShanghai200444P. R. China
| | - Caihong Dong
- Department of UltrasoundZhongshan HospitalFudan Universityand Shanghai Institute of Medical ImagingShanghai200032P. R. China
| | - Xinyue Dai
- Materdicine LabSchool of Life SciencesShanghai UniversityShanghai200444P. R. China
| | - Guiying Feng
- Department of UltrasonographyHainan General Hospital/Hainan Affiliated Hospital of Hainan Medical UniversityHaikou570311P. R. China
| | - Ling Lin
- Department of UltrasonographyHainan General Hospital/Hainan Affiliated Hospital of Hainan Medical UniversityHaikou570311P. R. China
| | - Dandan Sun
- Department of UltrasonographyHainan General Hospital/Hainan Affiliated Hospital of Hainan Medical UniversityHaikou570311P. R. China
| | - Dayan Yang
- Department of UltrasonographyHainan General Hospital/Hainan Affiliated Hospital of Hainan Medical UniversityHaikou570311P. R. China
| | - Lin Xie
- Department of UltrasonographyHainan General Hospital/Hainan Affiliated Hospital of Hainan Medical UniversityHaikou570311P. R. China
| | - Yu Chen
- Materdicine LabSchool of Life SciencesShanghai UniversityShanghai200444P. R. China
| | - Jia Guo
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai201203P. R. China
| | - Xiangxiang Jing
- Department of UltrasonographyHainan General Hospital/Hainan Affiliated Hospital of Hainan Medical UniversityHaikou570311P. R. China
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18
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Denisov N, Qin S, Will J, Vasiljevic BN, Skorodumova NV, Pašti IA, Sarma BB, Osuagwu B, Yokosawa T, Voss J, Wirth J, Spiecker E, Schmuki P. Light-Induced Agglomeration of Single-Atom Platinum in Photocatalysis. Adv Mater 2023; 35:e2206569. [PMID: 36373557 DOI: 10.1002/adma.202206569] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/28/2022] [Indexed: 06/16/2023]
Abstract
With recent advances in the field of single-atoms (SAs) used in photocatalysis, an unprecedented performance of atomically dispersed co-catalysts has been achieved. However, the stability and agglomeration of SA co-catalysts on the semiconductor surface may represent a critical issue in potential applications. Here, the photoinduced destabilization of Pt SAs on the benchmark photocatalyst, TiO2 , is described. In aqueous solutions within illumination timescales ranging from few minutes to several hours, light-induced agglomeration of Pt SAs to ensembles (dimers, multimers) and finally nanoparticles takes place. The kinetics critically depends on the presence of sacrificial hole scavengers and the used light intensity. Density-functional theory calculations attribute the light induced destabilization of the SA Pt species to binding of surface-coordinated Pt with solution-hydrogen (adsorbed H atoms), which consequently weakens the Pt SA bonding to the TiO2 surface. Despite the gradual aggregation of Pt SAs into surface clusters and their overall reduction to metallic state, which involves >90% of Pt SAs, the overall photocatalytic H2 evolution remains virtually unaffected.
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Affiliation(s)
- Nikita Denisov
- Department of Materials Science and Engineering, Chair for Surface Science and Corrosion (WW4-LKO), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany
| | - Shanshan Qin
- Department of Materials Science and Engineering, Chair for Surface Science and Corrosion (WW4-LKO), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany
| | - Johannes Will
- Institute of Micro- and Nanostructure Research & Center for Nanoanalysis and Electron Microscopy (CENEM), IZNF, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 3, 91058, Erlangen, Germany
| | - Bojana Nedić Vasiljevic
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12-16, Belgrade, 11000, Serbia
| | - Natalia V Skorodumova
- Department of Materials Science and Engineering, School of Industrial Engineering and Management, KTH-Royal Institute of Technology, Brinellvägen 23, Stockholm, 10044, Sweden
| | - Igor A Pašti
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12-16, Belgrade, 11000, Serbia
- Department of Materials Science and Engineering, School of Industrial Engineering and Management, KTH-Royal Institute of Technology, Brinellvägen 23, Stockholm, 10044, Sweden
| | - Bidyut Bikash Sarma
- Institute of Catalysis Research and Technology and Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, 76131, Karlsruhe, Germany
| | - Benedict Osuagwu
- Department of Materials Science and Engineering, Chair for Surface Science and Corrosion (WW4-LKO), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany
| | - Tadahiro Yokosawa
- Institute of Micro- and Nanostructure Research & Center for Nanoanalysis and Electron Microscopy (CENEM), IZNF, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 3, 91058, Erlangen, Germany
| | - Johannes Voss
- Institute of Micro- and Nanostructure Research & Center for Nanoanalysis and Electron Microscopy (CENEM), IZNF, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 3, 91058, Erlangen, Germany
| | - Janis Wirth
- Institute of Micro- and Nanostructure Research & Center for Nanoanalysis and Electron Microscopy (CENEM), IZNF, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 3, 91058, Erlangen, Germany
| | - Erdmann Spiecker
- Institute of Micro- and Nanostructure Research & Center for Nanoanalysis and Electron Microscopy (CENEM), IZNF, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 3, 91058, Erlangen, Germany
| | - Patrik Schmuki
- Department of Materials Science and Engineering, Chair for Surface Science and Corrosion (WW4-LKO), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany
- Regional Centre of Advanced Technologies and Materials, Šlechtitelů 27, Olomouc, 78371, Czech Republic
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21569, Saudi Arabia
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19
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Zhou C, Sun QM, Cao Q, He JH, Lu JM. Synergistic Effect of Fe Single-Atom Catalyst for Highly Efficient Microwave-Stimulated Remediation of Chloramphenicol-Contaminated Soil. Small 2023; 19:e2205341. [PMID: 36399645 DOI: 10.1002/smll.202205341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/21/2022] [Indexed: 06/16/2023]
Abstract
Chloramphenicol (CAP) has long been used extensively in agriculture and is severely toxic to the biological environment. Microwave catalysis appears a promising method for soil remediation due to its fast and effective heat transfer, but it is challenging to prepare catalysts with good electromagnetic wave absorption and robust catalytic activity. In this study, atomically dispersed Fe on three-dimensional N-doped carbon supports (3D Fe-NC) is firstly used for microwave remediation of soil. Thanks to the synergistic effect of microwave "hot spots" and reactive oxygen species (•OH, •O2 - ), 3D Fe-NC can completely remove 99.9% of CAP in 5 min. The removal rate constant is nearly twice that of commercial activated carbon. Significantly, the germination rate of lettuce seeds in microwave-repaired soil contaminated by CAP reaches 70%. This work demonstrates the application of Fe single-atom catalyst in microwave remediation of contaminated soil, providing a novel insight for agricultural soil remediation.
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Affiliation(s)
- Chang Zhou
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
| | - Qi-Meng Sun
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
| | - Qiang Cao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
| | - Jing-Hui He
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
| | - Jian-Mei Lu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
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20
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Ruta V, Sivo A, Bonetti L, Bajada MA, Vilé G. Structural Effects of Metal Single-Atom Catalysts for Enhanced Photocatalytic Degradation of Gemfibrozil. ACS Appl Nano Mater 2022; 5:14520-14528. [PMID: 36338323 PMCID: PMC9623544 DOI: 10.1021/acsanm.2c02859] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/22/2022] [Indexed: 05/21/2023]
Abstract
The development of efficient catalysts is a highly necessary but challenging task within the field of environmental water remediation. Single-atom catalysts are promising nanomaterials within this respect, but in-depth studies encompassing this class of catalysts remain elusive. In this work, we systematically study the degradation of gemfibrozil, a persistent pollutant, on a series of carbon nitride photocatalysts, investigating both the effect of (i) catalyst textural properties and (ii) metal single atoms on the contaminant degradation. Tests in the absence of the catalyst result in negligible degradation rates, confirming the stability of the contaminant when dispersed in water. Then, photocatalytic tests at optimal pH, solvent, and wavelength reveal a correlation between the support surface area and the degradation. This points to the role of carbon nitride surface nanostructure on gemfibrozil degradation. In particular, the use of silver on mesoporous carbon nitride single-atom catalyst (Ag@mpgC3N4) leads to an unprecedented degradation of gemfibrozil (>90% within 60 min). The possible degradation intermediates and products were identified by mass spectrometry and were inert by cytotoxicity evaluation. We anticipate that, with further refinement and customization, the carbon nitride catalysts reported herein may find broad applications for light-driven degradation of other contaminants of emerging concern.
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21
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Yu R, Tan Y, Yao H, Xu Y, Huang J, Zhao B, Du Y, Hua Z, Li J, Shi J. Toward n-Alkane Hydroisomerization Reactions: High-Performance Pt-Al 2O 3/SAPO-11 Single-Atom Catalysts with Nanoscale Separated Metal-Acid Centers and Ultralow Platinum Content. ACS Appl Mater Interfaces 2022; 14:44377-44388. [PMID: 36153976 DOI: 10.1021/acsami.2c11607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Long-chain n-alkane hydroisomerization reaction plays a vital role in petrochemical and coal chemical industries, which could produce high-quality hydrocarbon fuels and lubricant base oils for modern transportation and mechanical drive. However, minimizing precious metal usage while maintaining the catalyst performance remains a great challenge. Herein, a novel bifunctional catalyst toward n-alkane hydroisomerization reactions, Pt-Al2O3/SAPO-11 (Pt-A/S11) featuring nanoscale separated metal-acid active centers has been synthesized via a simple two-step procedure. In detail, Pt species was first loaded on the nanometer-sized alumina matrices through an incipient wetness impregnation method and then mixed with SAPO-11 molecular sieve to form the composite catalyst. Importantly, 0.015Pt-A/S11 catalyst with the ever-reported lowest Pt loading amount of 0.015 wt % exhibits an extraordinarily high isomer yield of 85.8% compared to previous published results and the traditional Pt-SAPO-11/Al2O3 (Pt-S11/A) catalyst accompanying with the direct contact between metal and acid sites (65.6%). It has been confirmed that the Pt species in 0.015Pt-A/S11 samples exist in single-atom form, leading to an excellent hydroisomerization performance. The possible reaction processes have been discussed to elucidate the exemplary catalytic performance of the synthesized Pt-A/S11 catalysts with nanoscale intimacy of metal-acid sites.
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Affiliation(s)
- Rui Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, People's Republic of China
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
| | - Yangchun Tan
- Green Chemical Engineering Technology Research Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, People's Republic of China
| | - Heliang Yao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
| | - Yanhui Xu
- Green Chemical Engineering Technology Research Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, People's Republic of China
| | - Jian Huang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
| | - Bin Zhao
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, People's Republic of China
| | - Yanyan Du
- Green Chemical Engineering Technology Research Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, People's Republic of China
| | - Zile Hua
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
| | - Jiusheng Li
- Green Chemical Engineering Technology Research Center, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, People's Republic of China
| | - Jianlin Shi
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
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22
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Büchele S, Yakimov A, Collins SM, Ruiz-Ferrando A, Chen Z, Willinger E, Kepaptsoglou DM, Ramasse QM, Müller CR, Safonova OV, López N, Copéret C, Pérez-Ramírez J, Mitchell S. Elucidation of Metal Local Environments in Single-Atom Catalysts Based on Carbon Nitrides. Small 2022; 18:e2202080. [PMID: 35678101 DOI: 10.1002/smll.202202080] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 05/05/2022] [Indexed: 06/15/2023]
Abstract
The ability to tailor the properties of metal centers in single-atom heterogeneous catalysts depends on the availability of advanced approaches for characterization of their structure. Except for specific host materials with well-defined metal adsorption sites, determining the local atomic environment remains a crucial challenge, often relying heavily on simulations. This article reports an advanced analysis of platinum atoms stabilized on poly(triazine imide), a nanocrystalline form of carbon nitride. The approach discriminates the distribution of surface coordination sites in the host, the evolution of metal coordination at different stages during the synthesis of the material, and the potential locations of metal atoms within the lattice. Consistent with density functional theory predictions, simultaneous high-resolution imaging in high-angle annular dark field and bright field modes experimentally confirms the preferred localization of platinum in-plane in the corners of the triangular cavities. X-ray absorption spectroscopy (XAS), X-ray photoelectron spectroscopy (XPS), and dynamic nuclear polarization enhanced 15 N nuclear magnetic resonance (DNP-NMR) spectroscopies coupled with density functional theory (DFT) simulations reveal that the predominant metal species comprise Pt(II) bound to three nitrogen atoms and one chlorine atom inside the coordination sites. The findings, which narrow the gap between experimental and theoretical elucidation, contribute to the improved structural understanding and provide a benchmark for exploring the speciation of single-atom catalysts based on carbon nitrides.
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Affiliation(s)
- Simon Büchele
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zurich, 8093, Switzerland
| | - Alexander Yakimov
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zurich, 8093, Switzerland
| | - Sean M Collins
- Bragg Centre for Materials Research, School of Chemical and Process Engineering and School of Chemistry, University of Leeds, Leeds, LS2 9JT, UK
| | - Andrea Ruiz-Ferrando
- Institute of Chemical Research of Catalonia and Barcelona Institute of Science and Technology, Av. Països Catalans 16, Tarragona, 43007, Spain
| | - Zupeng Chen
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, P. R. China
| | - Elena Willinger
- Department of Mechanical and Process Engineering, ETH Zurich, Leonhardstrasse 21, Zurich, 8092, Switzerland
| | | | - Quentin M Ramasse
- SuperSTEM Laboratory, SciTech Daresbury Campus, Daresbury, WA4 4AD, UK
| | - Christoph R Müller
- Department of Mechanical and Process Engineering, ETH Zurich, Leonhardstrasse 21, Zurich, 8092, Switzerland
| | - Olga V Safonova
- Paul Scherrer Institute, Forschungsstrasse 111, Villigen, 5232, Switzerland
| | - Núria López
- Institute of Chemical Research of Catalonia and Barcelona Institute of Science and Technology, Av. Països Catalans 16, Tarragona, 43007, Spain
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zurich, 8093, Switzerland
| | - Javier Pérez-Ramírez
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zurich, 8093, Switzerland
| | - Sharon Mitchell
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zurich, 8093, Switzerland
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23
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Du J, Huang Y, Huang Z, Wu G, Wu B, Han X, Chen C, Zheng X, Cui P, Wu Y, Jiang J, Hong X. Reversing the Catalytic Selectivity of Single-Atom Ru via Support Amorphization. JACS Au 2022; 2:1078-1083. [PMID: 35647593 PMCID: PMC9131367 DOI: 10.1021/jacsau.2c00192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 05/04/2022] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
Supported single-atom catalysts (SACs), with the extremely homogenized active sites could achieve high hydrogenation selectivity toward one of the functional groups coexisting in the reactant molecule. However, as to the target group, the control of selective recognition and activation by SACs still remains a challenge. Herein, the phase engineering of the support is adopted to control the chemo-recognition behavior of SACs in selective hydrogenation. Single-atom Ru on amorphous porous ultrathin TiO2 nanosheets (Ru1/a-TiO2) is constructed, in which Ru is more positively charged than that in the crystalline counterpart (Ru1/c-TiO2). Moreover, in the nitro/vinyl selective hydrogenation process, Ru1/a-TiO2 shows superior nitro selectivity, opposite to the vinyl selectivity of Ru1/c-TiO2. Density functional theory calculations for single-atom Ru of different charge states show that the reactant adsorption configuration could be inverted in the amorphous TiO2, accounting for the chemo-recognition behavior controlled by the phase of support.
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Affiliation(s)
- Junyi Du
- Center
of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
- Division
of Advanced Materials, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, P. R. China
| | - Yan Huang
- Center
of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Zixiang Huang
- Center
of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
- National
Synchrotron Radiation Laboratory (NSRL), University of Science and Technology of China, Hefei 230029, P. R. China
| | - Geng Wu
- Center
of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Bei Wu
- Center
of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Xiao Han
- Center
of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Cai Chen
- Center
of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Xusheng Zheng
- National
Synchrotron Radiation Laboratory (NSRL), University of Science and Technology of China, Hefei 230029, P. R. China
| | - Peixin Cui
- Key
Laboratory of Soil Environment and Pollution Remediation, Institute
of Soil Science, Chinese Academy of Sciences, Nanjing 210008, P. R. China
| | - Yuen Wu
- Center
of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Jun Jiang
- Center
of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Xun Hong
- Center
of Advanced Nanocatalysis (CAN), Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
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24
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Chen B, Chen L, Zu L, Feng Y, Su Q, Zhang C, Yang J. Zero-Strain High-Capacity Silicon/Carbon Anode Enabled by a MOF-Derived Space-Confined Single-Atom Catalytic Strategy for Lithium-Ion Batteries. Adv Mater 2022; 34:e2200894. [PMID: 35355341 DOI: 10.1002/adma.202200894] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/21/2022] [Indexed: 06/14/2023]
Abstract
Developing zero-strain electrode materials with high capacity is crucial for lithium-ion batteries (LIBs). Here, a new zero-strain composite material made of ultrasmall Si nanodots (NDs) within metal organic framework-derived nanoreactors (Si NDs⊂MDN) through a novel space-confined catalytic strategy is reported. The unique Si NDs⊂MDN anode features a low strain (<3%) and a high theoretical lithium storage capacity (1524 mAh g-1 ) which far surpasses the traditional single-crystal counterparts that suffer from a low capacity delivery. The zero-strain property is evidenced by substantial characterizations including ex/in situ transmission electron microscopy and mechanical simulations. The Si NDs⊂MDN exhibits superior cycling stability and high reversible capacity (1327 mAh g-1 at 0.1 A g-1 after 100 cycles) in half-cells and high energy density (366 Wh kg-1 after 300 cycles) in a full cell. This study reports a new catalog of zero-strain electrode material with significantly improved capacity beyond the traditional single-crystal zero-strain materials.
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Affiliation(s)
- Bingjie Chen
- Research Center for Translational Medicine & Key Laboratory of Arrhythmias of the Ministry of Education of China, East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Shanghai, 200120, P. R. China
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai, 200092, P. R. China
| | - Lu Chen
- Research Center for Translational Medicine & Key Laboratory of Arrhythmias of the Ministry of Education of China, East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Shanghai, 200120, P. R. China
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai, 200092, P. R. China
| | - Lianhai Zu
- Research Center for Translational Medicine & Key Laboratory of Arrhythmias of the Ministry of Education of China, East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Shanghai, 200120, P. R. China
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai, 200092, P. R. China
- Department of Chemical Engineering, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Yutong Feng
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai, 200092, P. R. China
| | - Qingmei Su
- School of Materials Science and Engineering, and Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xian, 710021, P. R. China
| | - Chi Zhang
- Research Center for Translational Medicine & Key Laboratory of Arrhythmias of the Ministry of Education of China, East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Shanghai, 200120, P. R. China
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai, 200092, P. R. China
| | - Jinhu Yang
- Research Center for Translational Medicine & Key Laboratory of Arrhythmias of the Ministry of Education of China, East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Shanghai, 200120, P. R. China
- School of Chemical Science and Engineering, Tongji University, Siping Road 1239, Shanghai, 200092, P. R. China
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25
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Yang W, Liu X, Chen X, Cao Y, Cui S, Jiao L, Wu C, Chen C, Fu D, Gates ID, Gao Z, Jiang HL. A Sulfur-Tolerant MOF-Based Single-Atom Fe Catalyst for Efficient Oxidation of NO and Hg 0. Adv Mater 2022; 34:e2110123. [PMID: 35291046 DOI: 10.1002/adma.202110123] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 03/01/2022] [Indexed: 06/14/2023]
Abstract
Catalytic oxidation of NO and Hg0 is a crucial step to eliminate multiple pollutants from emissions from coal-fired power plants. However, traditional catalysts exhibit low catalytic activity and poor sulfur resistance due to low activation ability and poor adsorption selectivity. Herein, a single-atom Fe decorated N-doped carbon catalyst (Fe1 -N4 -C), with abundant Fe1 -N4 sites, based on a Fe-doped metal-organic framework is developed to oxidize NO and Hg0 . The results demonstrate that the Fe1 -N4 -C has ultrahigh catalytic activity for oxidizing NO and Hg0 at low and room temperature. More importantly, Fe1 -N4 -C exhibits robust sulfur resistance as it preferably adsorbs reactants over sulfur oxides, which has never been achieved before with traditional catalysts. Furthermore, SO2 boosts the catalytic oxidation of NO over Fe1 -N4 -C through accelerating the circulation of active sites. Density functional theory calculations reveal that the Fe1 -N4 active sites result in a low energy barrier and high adsorption selectivity, providing detailed molecular-level understanding for its excellent catalytic performance. This is the first report on NO and Hg0 oxidation over single-atom catalysts with strong sulfur tolerance. The outcomes demonstrate that single-atom catalysts are promising candidates for catalytic oxidation of NO and Hg0 enabling cleaner coal-fired power plant operations.
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Affiliation(s)
- Weijie Yang
- Department of Power Engineering, School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding, Hebei, 071003, P. R. China
| | - Xiaoshuo Liu
- Department of Power Engineering, School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding, Hebei, 071003, P. R. China
| | - Xuelu Chen
- Department of Power Engineering, School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding, Hebei, 071003, P. R. China
| | - Yue Cao
- Department of Environmental Science and Engineering, North China Electric Power University, Baoding, Hebei, 071003, P. R. China
| | - Shaoping Cui
- Department of Environmental Science and Engineering, North China Electric Power University, Baoding, Hebei, 071003, P. R. China
| | - Long Jiao
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Chongchong Wu
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta, T2N 1C-N, Canada
| | - Chuanmin Chen
- Department of Environmental Science and Engineering, North China Electric Power University, Baoding, Hebei, 071003, P. R. China
| | - Dong Fu
- Department of Environmental Science and Engineering, North China Electric Power University, Baoding, Hebei, 071003, P. R. China
| | - Ian D Gates
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta, T2N 1C-N, Canada
| | - Zhengyang Gao
- Department of Power Engineering, School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding, Hebei, 071003, P. R. China
| | - Hai-Long Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
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26
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Liu C, Pan G, Liang N, Hong S, Ma J, Liu Y. Ir Single Atom Catalyst Loaded on Amorphous Carbon Materials with High HER Activity. Adv Sci (Weinh) 2022; 9:e2105392. [PMID: 35266329 PMCID: PMC9069379 DOI: 10.1002/advs.202105392] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/23/2022] [Indexed: 05/14/2023]
Abstract
The research of high efficiency water splitting catalyst is important for the development of renewable energy economy. Here, the progress in the preparation of high efficiency hydrogen evolution reaction (HER) catalyst is reported. The support material is based on a polyhexaphenylbenzene material with intrinsic holes, which heals into carbon materials upon heating. The healing process is found to be useful for anchoring various transition metal atoms, among which the supported Ir Single-atom catalyst (SAC) catalyst shows much higher electrocatalytic activity and stability than the commercial Pt/C and Ir/C in HER. There is only 17 mV overpotential at 10 mA cm-2 , which is significantly lower than that of commercial Pt/C and Ir/C catalysts respectively by 26 and 3 mV, and the catalyst has an ultra-high mass activity (MA) of 51.6 A mg Ir - 1 ${\text{ A mg}}_{{\rm{Ir}}}^{ - 1}$ at 70 mV potential and turn over frequencies (TOF) of 171.61 s-1 at the potential of 100 mV. The density functional theory (DFT) calculation reveals the significant role of carbon coordination around the Ir center. A series of monatomic PBN-300-M are synthesized by using of designed carbon materials. The findings provide an enabling and versatile platform for facile accessing SACs toward many industrial important reactions.
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Affiliation(s)
- Chunxiang Liu
- School of ChemistryBeihang UniversityBeijing100191China
| | - Ganghuo Pan
- School of ChemistryBeihang UniversityBeijing100191China
| | - Nianjie Liang
- School of ChemistryBeihang UniversityBeijing100191China
| | - Song Hong
- Center for Instrumental AnalysisBeijing University of Chemical TechnologyChaoyangBeijing100029China
| | - Jingyuan Ma
- Shanghai Synchrotron Radiation FacilityShanghai Institute of Applied Physics Chinese Academy of SciencesShanghai201204China
| | - Yuzhou Liu
- School of ChemistryBeihang UniversityBeijing100191China
- Beijing Advanced Innovation Center for Biomedical EngineeringBeihang UniversityBeijing100191China
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27
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Liu X, Ge X, Cao J, Xiao Y, Wang Y, Zhang W, Song P, Xu W. Revealing the catalytic kinetics and dynamics of individual Pt atoms at the single-molecule level. Proc Natl Acad Sci U S A 2022; 119:e2114639119. [PMID: 35349346 DOI: 10.1073/pnas.2114639119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Here, with single-molecule fluorescence microscopy, we study the catalytic behavior of individual Pt atoms at single-turnover resolution, and then reveal the unique catalytic properties of Pt single-atom catalyst and the difference in catalytic properties between individual Pt atoms and Pt nanoparticles. Further density functional theory calculation indicates that unique catalytic properties of Pt single-atom catalyst could be attributed intrinsically to the unique surface properties of Pt1-based active sites. Due to the importance of single-atom catalysts (SAC), here, the catalysis of Pt SAC was studied at the single-molecule single-atom level. Both static and dynamic activity heterogeneity are observed in Pt SAC. It reveals that the intrinsic catalytic activity of Pt SAC is higher than that of Pt nanoparticles (NPs), although they follow the same bimolecular competition mechanism. Significantly, Pt SAC presents no catalysis-induced surface restructuring, meaning that the dynamic activity fluctuation of Pt SAC can only be attributed to the spontaneous surface restructuring, and the catalysis process does not affect much of the structure of Pt1-based active sites, all different from Pt NP catalysis, in which the surface restructuring and the catalysis can affect each other. Further, density functional theory (DFT) calculation indicates that the unique catalytic properties of Pt SAC or the different catalytic properties between Pt SAC and NPs could be attributed to the strong adsorptions of both reactant and product on Pt SAC, large surface energy of Pt SAC, and strong binding of Pt1 on support. Knowledge revealed here provides fundamental insights into the catalysis of atomically dispersed catalyst.
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28
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Hu B, Sun K, Zhuang Z, Chen Z, Liu S, Cheong WC, Chen C, Hu M, Cao X, Ma J, Tu R, Zheng X, Xiao H, Chen X, Cui Y, Peng Q, Chen C, Li Y. Distinct Crystal-Facet-Dependent Behaviors for Single-Atom Palladium-On-Ceria Catalysts: Enhanced Stabilization and Catalytic Properties. Adv Mater 2022; 34:e2107721. [PMID: 35142396 DOI: 10.1002/adma.202107721] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 01/07/2022] [Indexed: 06/14/2023]
Abstract
High-performance, fully atomically dispersed single-atom catalysts (SACs) are promising candidates for next-generation industrial catalysts. However, it remains a great challenge to avoid the aggregation of isolated atoms into nanoparticles during the preparation and application of SACs. Here, the evolution of Pd species is investigated on different crystal facets of CeO2 , and vastly different behaviors on the single-atomic dispersion of surface Pd atoms are surprisingly discovered. In situ X-ray photoelectron spectroscopy (XPS), in situ near-ambient-pressure-XPS (NAP-XPS), in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), and X-ray absorption spectroscopy (XAS) reveal that, in a reducing atmosphere, more oxygen vacancies are generated on the (100) facet of CeO2 , and Pd atoms can be trapped and thus feature atomic dispersion; by contrast, on the CeO2 (111) facet, Pd atoms will readily aggregate into clusters (Pdn ). Furthermore, Pd1 /CeO2 (100) gives a high selectivity of 90.3% for the catalytic N-alkylation reaction, which is 2.8 times higher than that for Pdn /CeO2 (111). This direct evidence demonstrates the crucial role of crystal-facet effects in the preparation of metal-atom-on-metal-oxide SACs. This work thus opens an avenue for the rational design and targeted synthesis of ultrastable and sinter-resistant SACs.
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Affiliation(s)
- Botao Hu
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
- Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing, 100094, P. R. China
| | - Kaian Sun
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Zewen Zhuang
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Zheng Chen
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000, P. R. China
| | - Shoujie Liu
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515031, P. R. China
| | - Weng-Chon Cheong
- Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau, Macau, 999078, P. R. China
| | - Cheng Chen
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P. R. China
| | - Mingzhen Hu
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xing Cao
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Junguo Ma
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Renyong Tu
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Xusheng Zheng
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, P. R. China
| | - Hai Xiao
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Xiao Chen
- Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Yi Cui
- Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, 215123, P. R. China
| | - Qing Peng
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Chen Chen
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Yadong Li
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
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29
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Abstract
Ferroptosis, resulting from the catastrophic accumulation of lipid reactive oxygen species (ROS) and the inactivation of glutathione (GSH)-dependent peroxidase 4 (GPX4), has emerged as a form of regulated cell death for cancer therapy. Despite progress made with current ferroptosis inducers, efficient systems to trigger ferroptosis remain challenging, owing largely to their low activity, uncontrollable behavior, and even nonselective interactions. Here, we report a self-adaptive ferroptosis platform by engineering a DNA modulator onto the surface of single-atom nanozymes (SAzymes). The modulator could not only specifically intensify the ROS-generating activity but also endow the SAzymes with on-demand GSH-consuming ability in tumor cells, accelerating selective and safe ferroptosis. The self-adaptive antitumor response has been demonstrated in colon cancer and breast cancer, promoting the development of selective cancer therapy.
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Affiliation(s)
- Fangfang Cao
- State Key Laboratory of Rare Earth Resources Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin, Changchun 130022, P. R. China
- University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Yanjuan Sang
- State Key Laboratory of Rare Earth Resources Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin, Changchun 130022, P. R. China
- University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Chaoying Liu
- Department of Respiratory Medicine, First Affiliated Hospital, Jilin University, Jilin 130021, P. R. China
| | - Fuquan Bai
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry, Institute of Theoretical Chemistry, Jilin University, Jilin, Changchun 130021, P. R. China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Jinsong Ren
- State Key Laboratory of Rare Earth Resources Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin, Changchun 130022, P. R. China
- University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Xiaogang Qu
- State Key Laboratory of Rare Earth Resources Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin, Changchun 130022, P. R. China
- University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
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30
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Abstract
Numerous efforts have been devoted to investigating the catalytic events and disclosing the catalytic nature of the metal-carbon interaction interface. Nevertheless, the local deconstruction of catalytically active metal-carbon interface was still missing. Herein, the selected four types of landmark catalytic paradigms were highlighted, which was expected to clarify their essence and thus simplify the catalytic scenarios of the metal-carbon interface—carbon-supported metal nanoparticles, carbon-confined single-atom sites, chainmail catalysis, and the Mott-Schottky effect. The potential challenges and new opportunities were also proposed in the field. This perspective is believed to give an in-depth understanding of the catalytic nature of the metal-carbon interaction interface and in turn provide rational guidance to the delicate design of novel high-performance carbon-supported metal catalysts.
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Affiliation(s)
- Liwen Xing
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, China
| | - Yujuan Jin
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, China.,Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing, China
| | - Yunxuan Weng
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, China.,Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing, China
| | - Yongjun Ji
- School of Light Industry, Beijing Technology and Business University, Beijing, China
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31
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Wu Z, Hwang I, Cha G, Qin S, Tomanec O, Badura Z, Kment S, Zboril R, Schmuki P. Optimized Pt Single Atom Harvesting on TiO 2 Nanotubes-Towards a Most Efficient Photocatalyst. Small 2022; 18:e2104892. [PMID: 34741416 DOI: 10.1002/smll.202104892] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/02/2021] [Indexed: 06/13/2023]
Abstract
In the present work the authors show that anodic TiO2 nanotubes (NT) show excellent harvesting properties for Pt single atoms (Pt SAs) from highly dilute Pt solutions. The tube walls of anodic nanotubes, after adequate annealing to anatase, provide ample of suitable trapping sites-that is, surface Ti3+ -Ov (Ov : oxygen vacancy) defects that are highly effective to extract and accumulate Pt in the form of SAs. A saturated (maximized) SA density can be achieved by an overnight immersion of a TiO2 NT layer to a H2 PtCl6 solution with a concentration that is as low as 0.01 mm Pt. Such TiO2 NTs with surface trapped Pt SAs provide a maximized high activity for photocatalytic H2 generation (reaching a turnover frequency (TOF) of 1.24 × 106 h-1 at a density of 1.4 × 105 Pt atoms µm-2 )-a higher loading with Pt nanoparticles does not further increase the photocatalytic activity. Overall, these findings show that anodic TiO2 nanotubes provide a remarkable substrate for Pt extraction and recovery from very dilute solutions that directly results in a highly efficient photocatalyst, fabricated by a simple immersion technique.
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Affiliation(s)
- Zhenni Wu
- Department of Materials Science WW4-LKO, Friedrich-Alexander-University of Erlangen-Nuremberg, Martensstraße 7, 91058, Erlangen, Germany
| | - Imgon Hwang
- Department of Materials Science WW4-LKO, Friedrich-Alexander-University of Erlangen-Nuremberg, Martensstraße 7, 91058, Erlangen, Germany
| | - Gihoon Cha
- Department of Materials Science WW4-LKO, Friedrich-Alexander-University of Erlangen-Nuremberg, Martensstraße 7, 91058, Erlangen, Germany
| | - Shanshan Qin
- Department of Materials Science WW4-LKO, Friedrich-Alexander-University of Erlangen-Nuremberg, Martensstraße 7, 91058, Erlangen, Germany
| | - Ondřej Tomanec
- Regional Centre of Advanced Technologies and Materials, Šlechtitelů 27, Olomouc, 78371, Czech Republic
| | - Zdenek Badura
- Regional Centre of Advanced Technologies and Materials, Šlechtitelů 27, Olomouc, 78371, Czech Republic
- Department of Experimental Physics, Faculty of Science, Palacký University, 17. listopadu 1192/12, Olomouc, 77900, Czech Republic
| | - Stepan Kment
- Regional Centre of Advanced Technologies and Materials, Šlechtitelů 27, Olomouc, 78371, Czech Republic
| | - Radek Zboril
- Regional Centre of Advanced Technologies and Materials, Šlechtitelů 27, Olomouc, 78371, Czech Republic
| | - Patrik Schmuki
- Department of Materials Science WW4-LKO, Friedrich-Alexander-University of Erlangen-Nuremberg, Martensstraße 7, 91058, Erlangen, Germany
- Regional Centre of Advanced Technologies and Materials, Šlechtitelů 27, Olomouc, 78371, Czech Republic
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, 21569, Saudi Arabia
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32
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Li T, Lu T, Li X, Xu L, Zhang Y, Tian Z, Yang J, Pang H, Tang Y, Xue J. Atomically Dispersed Mo Sites Anchored on Multichannel Carbon Nanofibers toward Superior Electrocatalytic Hydrogen Evolution. ACS Nano 2021; 15:20032-20041. [PMID: 34808048 DOI: 10.1021/acsnano.1c07694] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Developing affordable and efficient electrocatalysts as precious metal alternatives toward the hydrogen evolution reaction (HER) is crucially essential for the substantial progress of sustainable H2 energy-related technologies. The dual manipulation of coordination chemistry and geometric configuration for single-atom catalysts (SACs) has emerged as a powerful strategy to surmount the thermodynamic and kinetic dilemmas for high-efficiency electrocatalysis. We herein rationally designed N-doped multichannel carbon nanofibers supporting atomically dispersed Mo sites coordinated with C, N, and O triple components (labeled as Mo@NMCNFs hereafter) as a superior HER electrocatalyst. Systematic characterizations revealed that the local coordination microenvironment of Mo is determined to be a Mo-O1N1C2 moiety, which was theoretically probed to be the energetically favorable configuration for H intermediate adsorption by density functional theory calculations. Structurally, the multichannel porous carbon nanofibers with open ends could effectively enlarge the exposure of active sites, facilitate mass diffusion/charge transfer, and accelerate H2 release, leading to promoted reaction kinetics. Consequently, the optimized Mo@NMCNFs exhibited superior Pt-like HER performance in 0.5 M H2SO4 electrolyte with an overpotential of 66 mV at 10 mA cm-2, a Tafel slope of 48.9 mV dec-1, and excellent stability, outperforming a vast majority of the previously reported nonprecious HER electrocatalysts. The concept of both geometric and electronic engineering of SACs in this work may provide guidance for the design of high-efficiency molecule-like heterogeneous catalysts for a myriad of energy technologies.
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Affiliation(s)
- Tongfei Li
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, P. R. China
- School of Chemistry and Chemical Engineering, Southeast University, Jiangsu Optoelectronic Functional Materials and Engineering Laboratory, Nanjing 211189, P. R. China
- Department of Materials Science and Engineering, National University of Singapore, 117575 Singapore
| | - Tingyu Lu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Xin Li
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Lin Xu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Yiwei Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Jiangsu Optoelectronic Functional Materials and Engineering Laboratory, Nanjing 211189, P. R. China
| | - Ziqi Tian
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang, P. R. China
| | - Jun Yang
- State Key Laboratory of Multiphase Complex Systems and Center of Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Huan Pang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, P. R. China
| | - Yawen Tang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Junmin Xue
- Department of Materials Science and Engineering, National University of Singapore, 117575 Singapore
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33
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Abstract
In the past decade, isolated single atoms have been successfully dispersed on various substrates, with their potential applications being intensively investigated in different reactions. While the essential target of research in single-atom catalysis is the precise synthesis of stable single-atom catalysts (SACs) with clear configurations and impressive catalytic performance, theoretical investigations have also played important roles in identifying active sites, revealing catalytic mechanisms, and establishing structure-activity relationships. Nevertheless, special attention should still be paid in theoretical works to the particularity of SACs. In this Perspective, we will summarize the theoretical progress made on the understanding of the rich phenomena in single-atom catalysis. We focus on the determination of local structures of SACs via comparison between experiments and simulations, the discovery of distinctive catalytic mechanisms induced by multiadsorption, synergetic effects, and dynamic evolutions, to name a few, the proposal of criteria for theoretically designing SACs, and the extension of original concepts of single-atom catalysis. We hope that this Perspective will inspire more in-depth thinking on future theoretical studies of SACs.
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Affiliation(s)
- Wenhua Zhang
- Hefei
National Laboratory for Physical Sciences at the Microscale, Synergetic
Innovation Centre of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- Department
of Material Science and Technology of China, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Qiang Fu
- Hefei
National Laboratory for Physical Sciences at the Microscale, Synergetic
Innovation Centre of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Qiquan Luo
- Institutes
of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, China
| | - Li Sheng
- Department
of Chemical Physics, University of Science
and Technology, Hefei, Anhui 230026, China
| | - Jinlong Yang
- Hefei
National Laboratory for Physical Sciences at the Microscale, Synergetic
Innovation Centre of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- Department
of Chemical Physics, University of Science
and Technology, Hefei, Anhui 230026, China
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34
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Lin L, Li H, Wang Y, Li H, Wei P, Nan B, Si R, Wang G, Bao X. Temperature-Dependent CO 2 Electroreduction over Fe-N-C and Ni-N-C Single-Atom Catalysts. Angew Chem Int Ed Engl 2021; 60:26582-26586. [PMID: 34651393 DOI: 10.1002/anie.202113135] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Indexed: 11/10/2022]
Abstract
Reaction temperature is an important parameter to tune the selectivity and activity of electrochemical CO2 reduction reaction (CO2 RR) due to different thermodynamics of CO2 RR and competitive hydrogen evolution reaction (HER). In this work, temperature-dependent CO2 RR over Fe-N-C and Ni-N-C single-atom catalysts are investigated from 303 to 343 K. Increasing the reaction temperature improves and decreases CO Faradaic efficiency over Fe-N-C and Ni-N-C catalysts at high overpotentials, respectively. CO current density over Fe-N-C catalyst increases with temperature, then gets into a plateau at 323 K, finally reaches the maximum value of 185.8 mA cm-2 at 343 K. While CO current density over Ni-N-C catalyst achieves the maximum value of 252.5 mA cm-2 at 323 K, and then drops significantly to 202.9 mA cm-2 at 343 K. Temperature programmed desorption results and density functional theory calculations reveal that the difference of temperature-dependent variation on CO Faradaic efficiency and current density between Fe-N-C and Ni-N-C catalysts results from the varied adsorption strength of key reaction intermediates during CO2 RR.
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Affiliation(s)
- Long Lin
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Haobo Li
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Yi Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Hefei Li
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Pengfei Wei
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Bing Nan
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Rui Si
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Guoxiong Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Xinhe Bao
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
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35
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Wang Y, Qu Y, Qu B, Bai L, Liu Y, Yang ZD, Zhang W, Jing L, Fu H. Construction of Six-Oxygen-Coordinated Single Ni Sites on g-C 3 N 4 with Boron-Oxo Species for Photocatalytic Water-Activation-Induced CO 2 Reduction. Adv Mater 2021; 33:e2105482. [PMID: 34569106 DOI: 10.1002/adma.202105482] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/24/2021] [Indexed: 06/13/2023]
Abstract
The configuration regulation of single-atom photocatalysts (SAPCs) can significantly influence the interfacial charge transfer and subsequent catalytic process. The construction of conventional SAPCs for aqueous CO2 reduction is mainly devoted toward favorable activation and photoreduction of CO2 , however, the role of water is frequently neglected. In this work, single Ni atoms are successfully anchored by boron-oxo species on g-C3 N4 nanosheets through a facile ion-exchange method. The dative interaction between the B atom and the sp2 N atom of g-C3 N4 guarantees the high dispersion of boron-oxo species, where O atoms coordinate with single Ni (II) sites to obtain a unique six-oxygen-coordinated configuration. The optimized single-atom Ni photocatalyst, rivaling Pt-modified g-C3 N4 nanosheets, provides excellent CO2 reduction rate with CO and CH4 as products. Quasi-in-situ X-ray photoelectron spectra, transient absorption spectra, isotopic labeling, and in situ Fourier transform infrared spectra reveal that as-fabricated six-oxygen-coordinated single Ni (II) sites can effectively capture the photoelectrons of CN along the BO bridges and preferentially activate adsorbed water to produce H atoms to eventually induce a hydrogen-assisted CO2 reduction. This work diversifies the synthetic strategies for single-atom catalysts and provides insight on correlation between the single-atom configuration and reaction pathway.
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Affiliation(s)
- Yuying Wang
- Key Laboratory of Functional Inorganic Materials Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin, Heilongjiang, 150080, China
| | - Yang Qu
- Key Laboratory of Functional Inorganic Materials Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin, Heilongjiang, 150080, China
| | - Binhong Qu
- Key Laboratory of Functional Inorganic Materials Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin, Heilongjiang, 150080, China
| | - Linlu Bai
- Key Laboratory of Functional Inorganic Materials Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin, Heilongjiang, 150080, China
| | - Yang Liu
- Key Laboratory of Functional Inorganic Materials Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin, Heilongjiang, 150080, China
| | - Zhao-Di Yang
- School of Materials Science and Chemical Engineering, Harbin University of Science and Technology, Harbin, Heilongjiang, 150080, China
| | - Wei Zhang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
| | - Liqiang Jing
- Key Laboratory of Functional Inorganic Materials Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin, Heilongjiang, 150080, China
| | - Honggang Fu
- Key Laboratory of Functional Inorganic Materials Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin, Heilongjiang, 150080, China
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36
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Lazzarini A, Colaiezzi R, Gabriele F, Crucianelli M. Support-Activity Relationship in Heterogeneous Catalysis for Biomass Valorization and Fine-Chemicals Production. Materials (Basel) 2021; 14:ma14226796. [PMID: 34832198 PMCID: PMC8619138 DOI: 10.3390/ma14226796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/04/2021] [Accepted: 11/09/2021] [Indexed: 11/16/2022]
Abstract
Heterogeneous catalysts are progressively expanding their field of application, from high-throughput reactions for traditional industrial chemistry with production volumes reaching millions of tons per year, a sector in which they are key players, to more niche applications for the production of fine chemicals. These novel applications require a progressive utilization reduction of fossil feedstocks, in favor of renewable ones. Biomasses are the most accessible source of organic precursors, having as advantage their low cost and even distribution across the globe. Unfortunately, they are intrinsically inhomogeneous in nature and their efficient exploitation requires novel catalysts. In this process, an accurate design of the active phase performing the reaction is important; nevertheless, we are often neglecting the importance of the support in guaranteeing stable performances and improving catalytic activity. This review has the goal of gathering and highlighting the cases in which the supports (either derived or not from biomass wastes) share the worth of performing the catalysis with the active phase, for those reactions involving the synthesis of fine chemicals starting from biomasses as feedstocks.
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37
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Yang Q, Peng H, Zhang Q, Qian X, Chen X, Tang X, Dai S, Zhao J, Jiang K, Yang Q, Sun J, Zhang L, Zhang N, Gao H, Lu Z, Chen L. Atomically Dispersed High-Density Al-N 4 Sites in Porous Carbon for Efficient Photodriven CO 2 Cycloaddition. Adv Mater 2021; 33:e2103186. [PMID: 34536029 DOI: 10.1002/adma.202103186] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/04/2021] [Indexed: 06/13/2023]
Abstract
Highly active catalysts that can directly utilize renewable energy (e.g., solar energy) are desirable for CO2 value-added processes. Herein, aiming at improving the efficiency of photodriven CO2 cycloaddition reactions, a catalyst composed of porous carbon nanosheets enriched with a high loading of atomically dispersed Al atoms (≈14.4 wt%, corresponding to an atomic percent of ≈7.3%) coordinated with N (AlN4 motif, Al-N-C catalyst) via a versatile molecule-confined pyrolysis strategy is reported. The performance of the Al-N-C catalyst for catalytic CO2 cycloaddition under light irradiation (≈95% conversion, reaction rate = 3.52 mmol g-1 h-1 ) is significantly superior to that obtained under a thermal environment (≈57% conversion, reaction rate = 2.11 mmol g-1 h-1 ). Besides the efficient photothermal conversion induced by the carbon matrix, both experimental and theoretical analysis reveal that light irradiation favors the photogenerated electron transfer from the semiconductive Al-N-C catalyst to the epoxide reactant, facilitating the formation of a ring-opened intermediate through the rate-limiting step. This study not only provides an advanced Al-N-C catalyst for photodriven CO2 cycloaddition, but also furnishes new insight for the rational design of superior photocatalysts for diverse heterogeneous catalytic reactions in the future.
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Affiliation(s)
- Qihao Yang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Huaitao Peng
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, P. R. China
| | - Qiuju Zhang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xu Qian
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
- University of Science and Technology of China, Hefei, 230029, P. R. China
| | - Xu Chen
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xuan Tang
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Sheng Dai
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Jiajun Zhao
- Institute of Fuel Cells, Interdisciplinary Science Research Centre, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Kun Jiang
- Institute of Fuel Cells, Interdisciplinary Science Research Centre, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Qiu Yang
- Ningbo New Material Testing and Evaluation Center Co., Ltd., Ningbo New Materials Innovation Center, East District Building 1 No.1, 2660 Yongjiang Avenue, Yinzhou District, Ningbo, 315100, P. R. China
| | - Jian Sun
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, P. R. China
| | - Linjuan Zhang
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, P. R. China
| | - Nian Zhang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Honglin Gao
- National Center for International Research on Photoelectric and Energy Materials, Yunnan Key Laboratory for Micro/nano Materials & Technology, School of Materials and Energy, Yunnan University, Kunming, 650091, P. R. China
| | - Zhiyi Lu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Liang Chen
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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38
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Jiang D, Yao Y, Li T, Wan G, Pereira-Hernández XI, Lu Y, Tian J, Khivantsev K, Engelhard MH, Sun C, García-Vargas CE, Hoffman AS, Bare SR, Datye AK, Hu L, Wang Y. Tailoring the Local Environment of Platinum in Single-Atom Pt 1 /CeO 2 Catalysts for Robust Low-Temperature CO Oxidation. Angew Chem Int Ed Engl 2021; 60:26054-26062. [PMID: 34346155 DOI: 10.1002/anie.202108585] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Indexed: 11/09/2022]
Abstract
A single-atom Pt1 /CeO2 catalyst formed by atom trapping (AT, 800 °C in air) shows excellent thermal stability but is inactive for CO oxidation at low temperatures owing to over-stabilization of Pt2+ in a highly symmetric square-planar Pt1 O4 coordination environment. Reductive activation to form Pt nanoparticles (NPs) results in enhanced activity; however, the NPs are easily oxidized, leading to drastic activity loss. Herein we show that tailoring the local environment of isolated Pt2+ by thermal-shock (TS) synthesis leads to a highly active and thermally stable Pt1 /CeO2 catalyst. Ultrafast shockwaves (>1200 °C) in an inert atmosphere induced surface reconstruction of CeO2 to generate Pt single atoms in an asymmetric Pt1 O4 configuration. Owing to this unique coordination, Pt1 δ+ in a partially reduced state dynamically evolves during CO oxidation, resulting in exceptional low-temperature performance. CO oxidation reactivity on the Pt1 /CeO2 _TS catalyst was retained under oxidizing conditions.
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Affiliation(s)
- Dong Jiang
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, 99164, USA
| | - Yonggang Yao
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA.,Current address: State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Tangyuan Li
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Gang Wan
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Xavier Isidro Pereira-Hernández
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, 99164, USA
| | - Yubing Lu
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Jinshu Tian
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Konstantin Khivantsev
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Mark H Engelhard
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Chengjun Sun
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Carlos E García-Vargas
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, 99164, USA
| | - Adam S Hoffman
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Simon R Bare
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Abhaya K Datye
- Department of Chemical and Biological Engineering and Center for Micro-Engineered Materials, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Liangbing Hu
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Yong Wang
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, 99164, USA.,Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
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39
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Liu J, Cao C, Liu X, Zheng L, Yu X, Zhang Q, Gu L, Qi R, Song W. Direct Observation of Metal Oxide Nanoparticles Being Transformed into Metal Single Atoms with Oxygen-Coordinated Structure and High-Loadings. Angew Chem Int Ed Engl 2021; 60:15248-15253. [PMID: 33913231 DOI: 10.1002/anie.202102647] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Indexed: 11/10/2022]
Abstract
Direct conversion of bulk metal or nanoparticles into metal single atoms under thermal pyrolysis conditions is a highly efficient and promising strategy to fabricate single-atom catalysts (SACs). Usually, nitrogen-doped carbon is used as the anchoring substrate to capture the migrating metal ion species at high temperatures, and stable isolated SACs with nitrogen coordination are formed during the process. Herein, we report unexpected oxygen-coordinated metal single-atom catalysts (Fe-, Co-, Ni-, Mn-SACs) with high loadings (above 10 wt %) through direct transformation of metal oxide nanoparticles (Fe-, Co-, Ni-, Mn-NPs) in an inert atmosphere at 750 °C for 2 h. The atomic dispersion of metal single atoms and their coordinated structures were confirmed by aberration-corrected scanning transmission electron microscopy and X-ray absorption fine structures. In addition, the dynamic process of nanoparticles to atoms was directly observed by in situ transmission electron microscopy. The as-prepared Fe SAC exhibited high activity and superior selectivity for catalytic oxidation of benzene to phenol with hydrogen peroxide.
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Affiliation(s)
- Jian Liu
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Changyan Cao
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiaozhi Liu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiaohu Yu
- Institute of Theoretical and Computational Chemistry, Shaanxi Key Laboratory of Catalysis, School of Chemical & Environment Sciences, Shaanxi University of Technology, Hanzhong, 723000, P. R. China
| | - Qinghua Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Lin Gu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Ruilian Qi
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, 100048, P. R. China
| | - Weiguo Song
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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40
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Wang YY, Ding XL, Israel Gurti J, Chen Y, Li W, Wang X, Wang WJ, Deng JJ. Non-Dissociative Activation of Chemisorbed Dinitrogen on One or Two Vanadium Atoms Supported by a Mo 6 S 8 Cluster. Chemphyschem 2021; 22:1645-1654. [PMID: 34050588 DOI: 10.1002/cphc.202100195] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 05/24/2021] [Indexed: 01/19/2023]
Abstract
Adsorption of N2 on Mo6 S8 q _Vx clusters (x=0, 1, 2; q=0, ±1) were systematically studied by density functional theory calculations with dispersion corrections. It was found that the N2 can be chemisorbed and undergo non-dissociative activation on single or double metal atoms. The adsorption and activation are influenced by metal types (V or Mo), N2 coordination modes and charge states of the clusters. Particularly, anionic Mo6 S8 - _V2 clusters have remarkable ability to fix and activate N2 . In Mo6 S8 - _V2 , two V atoms prefer to adsorb on two adjacent S-Mo-S hollow sites, leading to the formation of a supported V…V unit. The N2 is bridged side-on coordinated with these two V atoms with high adsorption energy and significant charge transfer. The bond order, bond length and vibration frequency of the adsorbed N2 are close to those of a N-N single bond.
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Affiliation(s)
- Ya-Ya Wang
- School of Mathematics and Physics, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China.,Institute of Clusters and Low Dimensional Nanomaterials, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China.,School of New Energy, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China
| | - Xun-Lei Ding
- School of Mathematics and Physics, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China.,Institute of Clusters and Low Dimensional Nanomaterials, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China
| | - Joseph Israel Gurti
- School of Mathematics and Physics, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China.,Institute of Clusters and Low Dimensional Nanomaterials, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China
| | - Yan Chen
- School of Mathematics and Physics, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China.,Institute of Clusters and Low Dimensional Nanomaterials, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China.,School of New Energy, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China
| | - Wei Li
- School of Mathematics and Physics, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China.,Institute of Clusters and Low Dimensional Nanomaterials, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China
| | - Xin Wang
- School of Mathematics and Physics, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China.,Institute of Clusters and Low Dimensional Nanomaterials, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China
| | - Wen-Jie Wang
- School of Mathematics and Physics, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China.,Institute of Clusters and Low Dimensional Nanomaterials, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China
| | - Jia-Jun Deng
- School of Mathematics and Physics, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China.,Institute of Clusters and Low Dimensional Nanomaterials, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing, 102206, P. R. China
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41
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Yu Y, Tan L, Li Z, Liu X, Zheng Y, Feng X, Liang Y, Cui Z, Zhu S, Wu S. Single-Atom Catalysis for Efficient Sonodynamic Therapy of Methicillin-Resistant Staphylococcus aureus-Infected Osteomyelitis. ACS Nano 2021; 15:10628-10639. [PMID: 34086433 DOI: 10.1021/acsnano.1c03424] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Osteomyelitis, as a severe bone disease caused by bacterial infection, can result in lifelong disability or fatal sepsis. Considering that the infection is stubborn and deep-sited in bone tissue, in situ and rapid treatments for osteomyelitis remain a significant challenge. Herein, we prepare an ultrasound (US)-activated single-atom catalyst that consists of a Au nanorod (NRs)-actuated single-atom-doped porphyrin metal-organic framework (HNTM-Pt@Au) and red cell membrane (RBC), which can efficiently treat methicillin-resistant Staphylococcus aureus (MRSA)-infected osteomyelitis under US. Besides the outstanding performance in the field of photocatalysis, we find that single atoms (such as Pt, Au, Cu) also improve the sonocatalytic ability of the sonosensitizer. Due to the strong electron-trapping and oxygen adsorption capacity, the Pt single atom endows RBC-HNTM-Pt@Au with an excellent sonocatalytic activity. It shows an excellent antibacterial performance with an antibacterial efficiency of 99.9% toward MRSA under 15 min of US irradiation. Meanwhile, the RBC-HNTM-Pt@Au can be propelled directionally under US and thus dynamically neutralize the secreted toxins. The MRSA-infected osteomyelitis in rat tibia was successfully treated, which shows negligible bone loss, reduced inflammation response, and great biocompatibility. This work presents an efficient sonodynamic therapy for the treatment of deep tissue infections via a multifunctional single-atom catalyst.
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Affiliation(s)
- Yi Yu
- Biomedical Materials Engineering Research Center, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, Hubei University, Wuhan 430062, China
| | - Lei Tan
- Biomedical Materials Engineering Research Center, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, Hubei University, Wuhan 430062, China
| | - Zhaoyang Li
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin 300072, China
| | - Xiangmei Liu
- School of Life Science and Health Engineering, Hebei University of Technology, Xiping Avenue 5340, Beichen District, Tianjin 300401, China
| | - Yufeng Zheng
- State Key Laboratory for Turbulence and Complex System and Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 0087, China
| | - Xiaobo Feng
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yanqin Liang
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin 300072, China
| | - Zhenduo Cui
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin 300072, China
| | - Shengli Zhu
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin 300072, China
| | - Shuilin Wu
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin 300072, China
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42
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Liu J, Zou Y, Cruz D, Savateev A, Antonietti M, Vilé G. Ligand-Metal Charge Transfer Induced via Adjustment of Textural Properties Controls the Performance of Single-Atom Catalysts during Photocatalytic Degradation. ACS Appl Mater Interfaces 2021; 13:25858-25867. [PMID: 34028257 PMCID: PMC8289176 DOI: 10.1021/acsami.1c02243] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Because of their peculiar nitrogen-rich structure, carbon nitrides are convenient polydentate ligands for designing single atom-dispersed photocatalysts. However, the relation between catalysts' textural properties and their photophysical-photocatalytic properties is rarely elaborated. Herein, we report the preparation and characterization of a series of single-atom heterogeneous catalysts featuring highly dispersed Ag and Cu species on mesoporous graphitic C3N4. We show that adjustment of materials textural properties and therefore metal single-atom coordination mode enables ligand-to-metal charge transfer (LMCT) or ligand-to-metal-to-ligand charge transfer (LMLCT), properties that were long speculated in single-atom catalysis but never observed. We employ the developed materials in the degradation of organic pollutants under irradiation with visible light. Kinetic investigations under flow conditions show that single atoms of Ag and Cu decrease the number of toxic organic fragmentation products while leading to a higher selectivity toward full degradation. The results correlate with the selected mode of charge transfer in the designed photocatalysts and provide a new understanding of how the local environment of a single-atom catalyst affects the surface structure and reactivity. The concepts can be exploited further to rationally design and optimize other single-atom materials.
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Affiliation(s)
- Jiaxu Liu
- Department
of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milan 20133, Italy
- State
Key Laboratory of Fine Chemicals, Department of Catalytic Chemistry
and Engineering, Dalian University of Technology, Ganjingzi District, Linggong Road
2, Dalian 116024, China
| | - Yajun Zou
- Department
of Colloid Chemistry, Max Planck Institute
of Colloids and Interfaces, Potsdam-Golm Science Park, Am Mühlenberg
1 OT Golm, Potsdam 14476, Germany
| | - Daniel Cruz
- Department
of Inorganic Chemistry, Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, Berlin 14195, Germany
- Department
of Heterogeneous Reactions, Max Planck Institute
for Chemical Energy Conversion, Mülheim an der Ruhr 45470, Germany
| | - Aleksandr Savateev
- Department
of Colloid Chemistry, Max Planck Institute
of Colloids and Interfaces, Potsdam-Golm Science Park, Am Mühlenberg
1 OT Golm, Potsdam 14476, Germany
| | - Markus Antonietti
- Department
of Colloid Chemistry, Max Planck Institute
of Colloids and Interfaces, Potsdam-Golm Science Park, Am Mühlenberg
1 OT Golm, Potsdam 14476, Germany
| | - Gianvito Vilé
- Department
of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, Milan 20133, Italy
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43
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Deraet X, Turek J, Alonso M, Tielens F, Cottenier S, Ayers PW, Weckhuysen BM, De Proft F. Reactivity of Single Transition Metal Atoms on a Hydroxylated Amorphous Silica Surface: A Periodic Conceptual DFT Investigation. Chemistry 2021; 27:6050-6063. [PMID: 33368741 DOI: 10.1002/chem.202004660] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/15/2020] [Indexed: 11/08/2022]
Abstract
The drive to develop maximal atom-efficient catalysts coupled to the continuous striving for more sustainable reactions has led to an ever-increasing interest in single-atom catalysis. Based on a periodic conceptual density functional theory (cDFT) approach, fundamental insights into the reactivity and adsorption of single late transition metal atoms supported on a fully hydroxylated amorphous silica surface have been acquired. In particular, this investigation revealed that the influence of van der Waals dispersion forces is especially significant for a silver (98 %) or gold (78 %) atom, whereas the oxophilicity of the Group 8-10 transition metals plays a major role in the interaction strength of these atoms on the irreducible SiO2 support. The adsorption energies for the less-electronegative row 4 elements (Fe, Co, Ni) ranged from -1.40 to -1.92 eV, whereas for the heavier row 5 and 6 metals, with the exception of Pd, these values are between -2.20 and -2.92 eV. The deviating behavior of Pd can be attributed to a fully filled d-shell and, hence, the absence of the hybridization effects. Through a systematic analysis of cDFT descriptors determined by using three different theoretical schemes, the Fermi weighted density of states approach was identified as the most suitable for describing the reactivity of the studied systems. The main advantage of this scheme is the fact that it is not influenced by fictitious Coulomb interactions between successive, charged reciprocal cells. Moreover, the contribution of the energy levels to the reactivity is simultaneously scaled based on their position relative to the Fermi level. Finally, the obtained Fermi weighted density of states reactivity trends show a good agreement with the chemical characteristics of the investigated metal atoms as well as the experimental data.
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Affiliation(s)
- Xavier Deraet
- Department of General Chemistry (ALGC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050, Elsene, Brussels, Belgium
| | - Jan Turek
- Department of General Chemistry (ALGC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050, Elsene, Brussels, Belgium
| | - Mercedes Alonso
- Department of General Chemistry (ALGC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050, Elsene, Brussels, Belgium
| | - Frederik Tielens
- Department of General Chemistry (ALGC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050, Elsene, Brussels, Belgium
| | - Stefaan Cottenier
- Department of Electrical Energy, Metals, Mechanical Constructions and Systems, Ghent University, Technologiepark 46, 9052, Zwijnaarde, Belgium.,Center for Molecular Modeling, Ghent University, Technologiepark 46, 9052, Zwijnaarde, Belgium
| | - Paul W Ayers
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario, L8S 4M1, Canada
| | - Bert M Weckhuysen
- Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands
| | - Frank De Proft
- Department of General Chemistry (ALGC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050, Elsene, Brussels, Belgium
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44
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Kaiser SK, Clark AH, Cartocci L, Krumeich F, Pérez-Ramírez J. Sustainable Synthesis of Bimetallic Single Atom Gold-Based Catalysts with Enhanced Durability in Acetylene Hydrochlorination. Small 2021; 17:e2004599. [PMID: 33432775 DOI: 10.1002/smll.202004599] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/27/2020] [Indexed: 06/12/2023]
Abstract
Gold single-atom catalysts (SACs) exhibit outstanding reactivity in acetylene hydrochlorination to vinyl chloride, but their practical applicability is compromised by current synthesis protocols, using aqua regia as chlorine-based dispersing agent, and their high susceptibility to sintering on non-functionalized carbon supports at >500 K and/or under reaction conditions. Herein, a sustainable synthesis route to carbon-supported gold nanostructures in bimetallic catalysts is developed by employing salts as alternative chlorine source, allowing for tailored gold dispersion, ultimately reaching atomic level when using H2 PtCl6 . To rationalize these observations, several synthesis parameters (i.e., pH, Cl-content) as well as the choice of metal chlorides are evaluated, hinting at the key role of platinum in promoting a chlorine-mediated dispersion mechanism. This can be further extrapolated to redisperse large gold agglomerates (>70 nm) on carbon carriers into isolated atoms, which has important implications for catalyst regeneration. Another key role of platinum single atoms is to inhibit the sintering of their spatially isolated gold-based analogs up to 800 K and during acetylene hydrochlorination, without compromising the intrinsic activity of Au(I)-Cl active sites. Accordingly, exploiting cooperativity effects of a second metal is a promising strategy towards practical applicability of gold SACs, opening up exciting opportunities for multifunctional single-atom catalysis.
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Affiliation(s)
- Selina K Kaiser
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Adam H Clark
- Paul Scherrer Institut, Villigen PSI, 5232, Switzerland
| | - Lucrezia Cartocci
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Frank Krumeich
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
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45
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Wang Y, Su YQ, Hensen EJM, Vlachos DG. Finite-Temperature Structures of Supported Subnanometer Catalysts Inferred via Statistical Learning and Genetic Algorithm-Based Optimization. ACS Nano 2020; 14:13995-14007. [PMID: 33054171 DOI: 10.1021/acsnano.0c06472] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Single-atom catalysts (SACs) minimize noble metal utilization and can alter the activity and selectivity of supported metal nanoparticles. However, the morphology of active centers, including single atoms and subnanometer clusters of a few atoms, remains elusive due to experimental challenges. The computational cost to describe numerous cluster shapes and sizes makes direct first-principles calculations impractical. We present a computational framework to enable structure determination for single-atom and subnanometer cluster catalysts. As a case study, we obtained the low-energy structures of Pdn (n = 1-21) clusters supported on CeO2(111), which are critical components of automobile three-way catalysts. Trained on density functional theory data, a three-dimensional cluster expansion is established using statistical learning to describe the Hamiltonian and predict energies of supported Pdn clusters of any structure. Low-energy stable and metastable structures are identified using a Metropolis Monte Carlo-based genetic algorithm in the canonical ensemble at 300 K. We observe that supported single atoms sinter to form bilayer clusters, and large cluster isomers share similarities in both shape and energy. The findings elucidate the significance of the support and microstructure on cluster stability. We discovered a simple surrogate structure-energy model, where the energy per atom scales with the square root of the average first coordination number, which can be used to estimate energies and compare the stability of clusters. Our framework, applicable to any metal/support system, fills an important methodological gap to predict the stability of supported metal catalysts in the subnanometer regime.
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Affiliation(s)
- Yifan Wang
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
- Catalysis Center for Energy Innovation, RAPID Manufacturing Institute, and Delaware Energy Institute (DEI), University of Delaware, 221 Academy Street, Newark, Delaware 19716, United States
| | - Ya-Qiong Su
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China
| | - Emiel J M Hensen
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Dionisios G Vlachos
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
- Catalysis Center for Energy Innovation, RAPID Manufacturing Institute, and Delaware Energy Institute (DEI), University of Delaware, 221 Academy Street, Newark, Delaware 19716, United States
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46
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Liu Y, Liu JC, Li TH, Duan ZH, Zhang TY, Yan M, Li WL, Xiao H, Wang YG, Chang CR, Li J. Unravelling the Enigma of Nonoxidative Conversion of Methane on Iron Single-Atom Catalysts. Angew Chem Int Ed Engl 2020; 59:18586-18590. [PMID: 32643319 DOI: 10.1002/anie.202003908] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Indexed: 02/05/2023]
Abstract
The direct, nonoxidative conversion of methane on a silica-confined single-atom iron catalyst is a landmark discovery in catalysis, but the proposed gas-phase reaction mechanism is still open to discussion. Here, we report a surface reaction mechanism by computational modeling and simulations. The activation of methane occurs at the single iron site, whereas the dissociated methyl disfavors desorption into gas phase under the reactive conditions. In contrast, the dissociated methyl prefers transferring to adjacent carbon sites of the active center (Fe1 ©SiC2 ), followed by C-C coupling and hydrogen transfer to produce the main product (ethylene) via a key -CH-CH2 intermediate. We find a quasi Mars-van Krevelen (quasi-MvK) surface reaction mechanism involving extracting and refilling the surface carbon atoms for the nonoxidative conversion of methane on Fe1 ©SiO2 and this surface process is identified to be more plausible than the alternative gas-phase reaction mechanism.
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Affiliation(s)
- Yuan Liu
- Department of chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China.,Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jin-Cheng Liu
- Department of chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Teng-Hao Li
- School of Chemical Engineering and Technology, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Zeng-Hui Duan
- Department of chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Tian-Yu Zhang
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, IL, 62901, USA
| | - Ming Yan
- School of Chemical Engineering and Technology, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Wan-Lu Li
- Department of chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Hai Xiao
- Department of chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China
| | - Yang-Gang Wang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Chun-Ran Chang
- School of Chemical Engineering and Technology, Shaanxi Key Laboratory of Energy Chemical Process Intensification, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Jun Li
- Department of chemistry and Key Laboratory of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing, 100084, China.,Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
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47
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Zhong Y, Kong X, Geng Z, Zeng J, Luo X, Zhang L. Molecular Modification of Single Cobalt Sites Boosts the Catalytic Activity of CO 2 Electroreduction into CO. Chemphyschem 2020; 21:2051-2055. [PMID: 32721090 DOI: 10.1002/cphc.202000576] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 07/27/2020] [Indexed: 11/08/2022]
Abstract
Electroreduction of CO2 into carbonaceous fuels or industrial chemicals using renewable energy sources is an ideal way to promote global carbon recycling. Thus, it is of great importance to develop highly selective, efficient, and stable catalysts. Herein, we prepared cobalt single atoms (Co SAs) coordinated with phthalocyanine (Co SAs-Pc). The anchoring of phthalocyanine with Co sites enabled electron transfer from Co sites to CO2 effectively via the π-conjugated system, resulting in high catalytic performance of CO2 electroreduction into CO. During the process of CO2 electroreduction, the Faradaic efficiency (FE) of Co SAs-Pc for CO was as high as 94.8 %. Meanwhile, the partial current density of Co SAs-Pc for CO was -11.3 mA cm-2 at -0.8 V versus the reversible hydrogen electrode (vs RHE), 18.83 and 2.86 times greater than those of Co SAs (-0.60 mA cm-2 ) and commercial Co phthalocyanine (-3.95 mA cm-2 ), respectively. In an H-cell system operating at -0.8 V vs RHE over 10 h, the current density and FE for CO of Co SAs-Pc dropped by 3.2 % and 2.5 %. A mechanistic study revealed that the promoted catalytic performance of Co SAs-Pc could be attributed to the accelerated reaction kinetics and facilitated CO2 activation.
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Affiliation(s)
- Yongzhi Zhong
- Research Center of Laster Fusion, China Academy of Engineering Physics, Mianyang, Sichuan, 621900, P.R. China
| | - Xiangdong Kong
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Zhigang Geng
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Jie Zeng
- Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Xuan Luo
- Research Center of Laster Fusion, China Academy of Engineering Physics, Mianyang, Sichuan, 621900, P.R. China
| | - Lin Zhang
- Research Center of Laster Fusion, China Academy of Engineering Physics, Mianyang, Sichuan, 621900, P.R. China
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48
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Wang J, Heil T, Zhu B, Tung CW, Yu J, Chen HM, Antonietti M, Cao S. A Single Cu-Center Containing Enzyme-Mimic Enabling Full Photosynthesis under CO 2 Reduction. ACS Nano 2020; 14:8584-8593. [PMID: 32603083 DOI: 10.1021/acsnano.0c02940] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Polymeric carbon nitride (CN) is one of the most promising metal-free photocatalysts to alleviate the energy crisis and environmental pollution. Loading cocatalysts is regarded as an effective way to improve the photocatalytic efficiency of CNs. However, commonly used noble metal cocatalysts limit their applications due to their rarity and high cost. Herein, we present the effective synthesis of single-atom copper-modified CN via supramolecular preorganization with subsequent condensation, which provides effective charge transfer pathways by an "infused" delocalized state with variable-valence catalysis at the same time. The C-Cu-N2 single-atom catalytic site can activate CO2 molecules and reduces the energy barrier toward photocatalytic CO2 reduction. Excellent performance for photocatalytic CO2 reduction was found. This work thereby provides a general protocol of designing a noble-metal-free photocatalyst with infused metal centers toward a wide range of applications.
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Affiliation(s)
- Jiu Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070 Wuhan, People's Republic of China
| | - Tobias Heil
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, 14476 Potsdam, Germany
| | - Bicheng Zhu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070 Wuhan, People's Republic of China
| | - Ching-Wei Tung
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070 Wuhan, People's Republic of China
| | - Hao Ming Chen
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Markus Antonietti
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, 14476 Potsdam, Germany
| | - Shaowen Cao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070 Wuhan, People's Republic of China
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, 14476 Potsdam, Germany
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49
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Kong N, Fan X, Liu F, Wang L, Lin H, Li Y, Lee ST. Single Vanadium Atoms Anchored on Graphitic Carbon Nitride as a High-Performance Catalyst for Non-oxidative Propane Dehydrogenation. ACS Nano 2020; 14:5772-5779. [PMID: 32374154 DOI: 10.1021/acsnano.0c00659] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In comparison with oil-based cracking technologies, the on-purpose dehydrogenation of propane (PDH) is a more eco-friendly and profitable approach to produce propylene. By means of density functional theory calculations, the present work reveals that the single vanadium (V) atom anchored on graphitic carbon nitride (V1/g-C3N4) may serve as a promising single-atom catalyst for non-oxidative PDH with industrially practical activity, selectivity, and thermal stability. The high activity of V1/g-C3N4 for PDH is attributed to the low-coordinated 3d orbitals of single V atoms, while the propylene selectivity is originated from the inhibition of the di-σ binding mode of propylene on the single V atoms. This work provides a guideline to design and screen out promising single-atom catalysts for selective dehydrogenation of alkanes.
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Affiliation(s)
- Ningning Kong
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, No. 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Xing Fan
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, No. 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Fangfang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, No. 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Lu Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, No. 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Haiping Lin
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, No. 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Youyong Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, No. 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Shuit-Tong Lee
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, No. 199 Ren'ai Road, Suzhou, 215123, Jiangsu, People's Republic of China
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50
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Yi D, Lu F, Zhang F, Liu S, Zhou B, Gao D, Wang X, Yao J. Regulating Charge Transfer of Lattice Oxygen in Single-Atom-Doped Titania for Hydrogen Evolution. Angew Chem Int Ed Engl 2020; 59:15855-15859. [PMID: 32293087 DOI: 10.1002/anie.202004510] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Indexed: 11/08/2022]
Abstract
Single-atom catalysts have attracted much attention. Reported herein is that regulating charge transfer of lattice oxygen atoms in serial single-atom-doped titania enables tunable hydrogen evolution reaction (HER) activity. First-principles calculations disclose that the activity of lattice oxygen for the HER can be regularly promoted by substituting its nearest metal atom, and doping-induced charge transfer plays an essential role. Besides, the realm of the charge transfer of the active site can be enlarged to the second nearest atom by creating oxygen vacancies, resulting in further optimization for the HER. Various single-atom-doped titania nanosheets were fabricated to validate the proposed model. Taking advantage of the localized charge transfer to the lattice atom is demonstrated to be feasible for realizing precise regulation of the electronic structures and thus catalytic activity of the nanosheets.
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Affiliation(s)
- Ding Yi
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,Department of Physics, School of Science, Beijing Jiaotong University, Beijing, 100044, China
| | - Fei Lu
- Department of Physics, School of Science, Beijing Jiaotong University, Beijing, 100044, China
| | - Fengchu Zhang
- Department of Physics, School of Science, Beijing Jiaotong University, Beijing, 100044, China
| | - Shoujie Liu
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515031, China
| | - Bo Zhou
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515031, China
| | - Denglei Gao
- Department of Physics, School of Science, Beijing Jiaotong University, Beijing, 100044, China
| | - Xi Wang
- Department of Physics, School of Science, Beijing Jiaotong University, Beijing, 100044, China
| | - Jiannian Yao
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515031, China
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