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Yang H, Guo N, Xi S, Wu Y, Yao B, He Q, Zhang C, Wang L. Potential-driven structural distortion in cobalt phthalocyanine for electrocatalytic CO 2/CO reduction towards methanol. Nat Commun 2024; 15:7703. [PMID: 39231997 PMCID: PMC11375126 DOI: 10.1038/s41467-024-52168-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 08/28/2024] [Indexed: 09/06/2024] Open
Abstract
Cobalt phthalocyanine immobilized on carbon nanotube has demonstrated appreciable selectivity and activity for methanol synthesis in electrocatalytic CO2/CO reduction. However, discrepancies in methanol production selectivity and activity between CO2 and CO reduction have been observed, leading to inconclusive mechanisms for methanol production in this system. Here, we discover that the interaction between cobalt phthalocyanine molecules and defects on carbon nanotube substrate plays a key role in methanol production during CO2/CO electroreduction. Through detailed operando X-ray absorption and infrared spectroscopies, we find that upon application of cathodic potential, this interaction induces the transformation of the planar CoN4 center in cobalt phthalocyanine to an out-of-plane distorted configuration. Consequently, this potential induced structural change promotes the transformation of linearly bonded *CO at the CoN4 center to bridge *CO, thereby facilitating methanol production. Overall, these comprehensive mechanistic investigations and the outstanding performance (methanol partial current density over 150 mA cm-2) provide valuable insights in guiding the activity and selectivity of immobilized cobalt phthalocyanine for methanol production in CO2/CO reduction.
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Affiliation(s)
- Haozhou Yang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore
| | - Na Guo
- National University of Singapore (Chongqing) Research Institute, Building 4, Internet Industrial Park Phase 2, Chongqing Liang Jiang New Area, Chongqing, China
- Department of Physics, National University of Singapore, Singapore, Singapore
| | - Shibo Xi
- Institute of Sustainability for Chemical, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Yao Wu
- Department of Material Science Engineering, National University of Singapore, Singapore, Singapore
| | - Bingqing Yao
- Department of Material Science Engineering, National University of Singapore, Singapore, Singapore
| | - Qian He
- Department of Material Science Engineering, National University of Singapore, Singapore, Singapore
| | - Chun Zhang
- Department of Physics, National University of Singapore, Singapore, Singapore.
- Department of Chemistry, National University of Singapore, Singapore, Singapore.
| | - Lei Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore.
- Centre for Hydrogen Innovations, National University of Singapore, Singapore, Singapore.
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2
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Ajmal S, Kumar A, Mushtaq MA, Tabish M, Zhao Y, Zhang W, Khan AS, Saad A, Yasin G, Zhao W. Uniting Synergistic Effect of Single-Ni Site and Electric Field of B- Bridged-N for Boosted Electrocatalytic Nitrate Reduction to Ammonia. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310082. [PMID: 38470193 DOI: 10.1002/smll.202310082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 02/19/2024] [Indexed: 03/13/2024]
Abstract
Electrochemical conversion of nitrate, a prevalent water pollutant, to ammonia (NH3) is a delocalized and green path for NH3 production. Despite the existence of different nitrate reduction pathways, selectively directing the reaction pathway on the road to NH3 is now hindered by the absence of efficient catalysts. Single-atom catalysts (SACs) are extensively investigated in a wide range of catalytic processes. However, their application in electrocatalytic nitrate reduction reaction (NO3 -RR) to NH3 is infrequent, mostly due to their pronounced inclination toward hydrogen evolution reaction (HER). Here, Ni single atoms on the electrochemically active carrier boron, nitrogen doped-graphene (BNG) matrix to modulate the atomic coordination structure through a boron-spanning strategy to enhance the performance of NO3 -RR is designed. Density functional theory (DFT) study proposes that BNG supports with ionic characteristics, offer a surplus electric field effect as compared to N-doped graphene, which can ease the nitrate adsorption. Consistent with the theoretical studies, the as-obtained NiSA@BNG shows higher catalytic activity with a maximal NH3 yield rate of 168 µg h-1 cm-2 along with Faradaic efficiency of 95% and promising electrochemical stability. This study reveals novel ways to rationally fabricate SACs' atomic coordination structure with tunable electronic properties to enhance electrocatalytic performance.
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Affiliation(s)
- Saira Ajmal
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Anuj Kumar
- Nano-Technology Research Laboratory, Department of Chemistry, GLA University, Mathura, Uttar Pradesh, 281406, India
| | - Muhammad Asim Mushtaq
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Mohammad Tabish
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yulin Zhao
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Wenbin Zhang
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Abdul Sammed Khan
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Ali Saad
- Centre for Water Technology (WATEC) & Department of Biological and Chemical Engineering, Aarhus University, Universitetsbyen 36, Aarhus C, 8000, Denmark
| | - Ghulam Yasin
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China
| | - Wei Zhao
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, 518060, China
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3
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Zhang R, Hu W, Liu J, Xu K, Liu Y, Yao Y, Liu M, Zhang XG, Li H, He P, Huo S. Electrochemical Synthesis of Urea: Co-Reduction of Nitrite and Carbon Dioxide on Binuclear Cobalt Phthalocyanine. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403285. [PMID: 39031789 DOI: 10.1002/smll.202403285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 06/04/2024] [Indexed: 07/22/2024]
Abstract
Exploration of molecular catalysts with the atomic-level tunability of molecular structures offers promising avenues for developing high-performance catalysts for the electrochemical co-reduction reaction of carbon dioxide (CO2) and nitrite (NO2 -) into value-added urea. In this work, a binuclear cobalt phthalocyanine (biCoPc) catalyst is prepared through chemical synthesis and applied as a C─N coupling catalyst toward urea. Achieving a remarkable Faradaic efficiency of 47.4% for urea production at -0.5 V versus reversible hydrogen electrode (RHE), this biCoPc outperforms many known molecular catalysts in this specific application. Its unique planar macromolecular structure and the increased valence state of cobalt promote the adsorption of nitrogenous and carbonaceous species, a critical factor in facilitating the multi-electron C─N coupling. Combining highly sensitive in situ attenuated total reflection surface-enhanced infrared absorption spectroscopy (ATR-SEIRAS) with density functional theory (DFT) calculations, the linear adsorbed CO (COL) and bridge adsorbed CO (COB) is captured on biCoPc catalyst during the co-reduction reaction. COB, a pivotal intermediate in the co-reduction from CO2 and nitrite to urea, is evidenced to be labile and may be attacked by nitrite, promoting urea production. This work demonstrates the importance of designing molecular catalysts for efficient co-reduction of CO2 and nitrite to urea.
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Affiliation(s)
- Rui Zhang
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Institute for Sustainable Energy, College of Sciences, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China
| | - Wenhui Hu
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Institute for Sustainable Energy, College of Sciences, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China
| | - Jingjing Liu
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Institute for Sustainable Energy, College of Sciences, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China
| | - Kaidi Xu
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Institute for Sustainable Energy, College of Sciences, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China
| | - Yi Liu
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Institute for Sustainable Energy, College of Sciences, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China
| | - Yahong Yao
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Institute for Sustainable Energy, College of Sciences, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China
| | - Minmin Liu
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Institute for Sustainable Energy, College of Sciences, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China
| | - Xia-Guang Zhang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, College of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, China
| | - Hong Li
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Peng He
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, ID, 46556, USA
| | - Shengjuan Huo
- International Joint Laboratory of Catalytic Chemistry, Department of Chemistry, Institute for Sustainable Energy, College of Sciences, Shanghai University, No. 99 Shangda Road, Shanghai, 200444, China
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4
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Lee Y, Lee C, Back S, Sa YJ. Electronic structure modification of metal phthalocyanines by a carbon nanotube support for efficient oxygen reduction to hydrogen peroxide. NANOSCALE 2024. [PMID: 38660774 DOI: 10.1039/d4nr00250d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
An active and selective two-electron oxygen reduction reaction (2e- ORR) is required for efficient electrosynthesis of H2O2. This reaction can be promoted by metal phthalocyanines (MPcs), which serve as model catalysts with well-defined structures. MPc molecules have mostly been evaluated on conductive carbon-based substrates, including glassy carbon (GC) and carbon nanotubes (CNTs), yet their influence on the electrocatalytic properties is not well understood. This study demonstrated that the ORR activity per surface area was improved by up to 4-fold with MPc molecules supported on CNTs (MPc/CNTs, M = Co, Mn, and Fe) compared to MPc loaded directly on GC. Ultraviolet photoelectron spectroscopy and density functional theory calculations revealed that the CNTs modified the electronic structure of the MPc molecules to optimize the *OOH binding energy and boost the heterogeneous electron transfer rates. Detailed kinetic analysis enabled multiple reaction pathways to be decoupled to extract the metal-dependent intrinsic 2e-/4e- ORR activities. Finally, MPc/CNT catalysts were employed in an H2O2 electrosynthesis flow cell, which delivered an industrial-scale current density of -200 mA cm-2 and an H2O2 faradaic efficiency of 88.7 ± 0.6% with the CoPc/CNT catalyst in a neutral electrolyte.
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Affiliation(s)
- Yesol Lee
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea.
| | - Chaehyeon Lee
- Department of Chemical and Biomolecular Engineering, Institute of Emergent Materials, Sogang University, Seoul 04107, Republic of Korea.
| | - Seoin Back
- Department of Chemical and Biomolecular Engineering, Institute of Emergent Materials, Sogang University, Seoul 04107, Republic of Korea.
| | - Young Jin Sa
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea.
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5
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Luo Z, Li L, Nguyen VT, Kanbur U, Li Y, Zhang J, Nie R, Biswas A, Bud'ko SL, Oh J, Zhou L, Huang W, Sadow AD, Wang B, Scott SL, Qi L. Catalytic Hydrogenolysis by Atomically Dispersed Iron Sites Embedded in Chemically and Redox Non-innocent N-Doped Carbon. J Am Chem Soc 2024; 146:8618-8629. [PMID: 38471106 DOI: 10.1021/jacs.4c00741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Atomically dispersed first-row transition metals embedded in nitrogen-doped carbon materials (M-N-C) show promising performance in catalytic hydrogenation but are less well-studied for reactions with more complex mechanisms, such as hydrogenolysis. Their ability to catalyze selective C-O bond cleavage of oxygenated hydrocarbons such as aryl alcohols and ethers is enhanced with the participation of ligands directly bound to the metal ion as well as longer-range contributions from the support. In this article, we describe how Fe-N-C catalysts with well-defined local structures for the Fe sites catalyze C-O bond hydrogenolysis. The reaction is facilitated by the N-C support. According to spectroscopic analyses, the as-synthesized catalysts contain mostly pentacoordinated FeIII sites, with four in-plane nitrogen donor ligands and one axial hydroxyl ligand. In the presence of 20 bar of H2 at 170-230 °C, the hydroxyl ligand is lost when N4FeIIIOH is reduced to N4FeII, assisted by the H2 chemisorbed on the support. When an alcohol binds to the tetracoordinated FeII sites, homolytic cleavage of the O-H bond is accompanied by reoxidation to FeIII and H atom transfer to the support. The role of the N-C support in catalytic hydrogenolysis is analogous to the behavior of chemically and redox-non-innocent ligands in molecular catalysts based on first-row transition metal ions and enhances the ability of M-N-Cs to achieve the types of multistep activations of strong bonds needed to upgrade renewable and recycled feedstocks.
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Affiliation(s)
- Zhicheng Luo
- U.S. DOE Ames National Laboratory, Iowa State University, Ames, Iowa 50011, United States
| | - Li Li
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Vy T Nguyen
- School of Sustainable Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Uddhav Kanbur
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Yuting Li
- U.S. DOE Ames National Laboratory, Iowa State University, Ames, Iowa 50011, United States
| | - Jie Zhang
- U.S. DOE Ames National Laboratory, Iowa State University, Ames, Iowa 50011, United States
| | - Renfeng Nie
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Abhranil Biswas
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Sergey L Bud'ko
- U.S. DOE Ames National Laboratory, Iowa State University, Ames, Iowa 50011, United States
| | - Jinsu Oh
- U.S. DOE Ames National Laboratory, Iowa State University, Ames, Iowa 50011, United States
| | - Lin Zhou
- U.S. DOE Ames National Laboratory, Iowa State University, Ames, Iowa 50011, United States
| | - Wenyu Huang
- U.S. DOE Ames National Laboratory, Iowa State University, Ames, Iowa 50011, United States
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Aaron D Sadow
- U.S. DOE Ames National Laboratory, Iowa State University, Ames, Iowa 50011, United States
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Bin Wang
- School of Sustainable Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Susannah L Scott
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
| | - Long Qi
- U.S. DOE Ames National Laboratory, Iowa State University, Ames, Iowa 50011, United States
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6
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Chen C, Li Y, Huang A, Liu X, Li J, Zhang Y, Chen Z, Zhuang Z, Wu Y, Cheong WC, Tan X, Sun K, Xu Z, Liu D, Wang Z, Zhou K, Chen C. Engineering Molecular Heterostructured Catalyst for Oxygen Reduction Reaction. J Am Chem Soc 2023; 145:21273-21283. [PMID: 37729633 DOI: 10.1021/jacs.3c05371] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
Introducing a second metal species into atomically dispersed metal-nitrogen-carbon (M-N-C) catalysts to construct diatomic sites (DASs) is an effective strategy to elevate their activities and stabilities. However, the common pyrolysis-based method usually leads to substantial uncertainty for the formation of DASs, and the precise identification of the resulting DASs is also rather difficult. In this regard, we developed a two-step specific-adsorption strategy (pyrolysis-free) and constructed a DAS catalyst featuring FeCo "molecular heterostructures" (FeCo-MHs). In order to rule out the possibility of the two apparently neighboring (in the electron microscopy image) Fe/Co atoms being dispersed respectively on the top/bottom surfaces of the carbon support and thus forming "false" MHs, we conducted in situ rotation (by 8°, far above the critical angle of 5.3°) and directly identified the individual FeCo-MHs. The formation of FeCo-MHs could modulate the magnetic moments of the metal centers and increase the ratio of low-spin Fe(II)-N4 moiety; thus the intrinsic activity could be optimized at the apex of the volcano-plot (a relationship as a function of magnetic moments of metal-phthalocyanine complexes and catalytic activities). The FeCo-MHs catalyst displays an exceptional ORR activity (E1/2 = 0.95 V) and could be used to construct high-performance cathodes for hydroxide exchange membrane fuel cells and zinc-air batteries.
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Affiliation(s)
- Chang Chen
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yifan Li
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G1H9, Canada
| | - Aijian Huang
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China
- School of Electronics Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Xuerui Liu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jiazhan Li
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yu Zhang
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Zhiqiang Chen
- Beijing Key Laboratory of Research and Application for Aerospace Green Propellants, Beijing Institute of Aerospace Testing Technology, Beijing 100048, China
| | - Zewen Zhuang
- College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Yue Wu
- College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Weng-Chon Cheong
- Macao Institute of Materials Science and Engineering (MIMSE), Faculty of Innovation Engineering, Macau University of Science and Technology, Taipa, Macao SAR 999078, China
| | - Xin Tan
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Kaian Sun
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Zhiyuan Xu
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Di Liu
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Zhiguo Wang
- School of Electronics Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Kebin Zhou
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chen Chen
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China
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7
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Raposo-Hernández G, Sánchez Marcos E, Pappalardo RR, Martínez JM. Shedding light on the metal-phthalocyanine EXAFS spectra through classical and ab initio molecular dynamics. J Chem Phys 2023; 158:064110. [PMID: 36792519 DOI: 10.1063/5.0135944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Extended X-Ray Absorption Fine Structure (EXAFS) theoretical spectra for some 3d transition metal-phthalocyanines-FePc, NiPc, CuPc, and ZnPc-are presented. Their complexity and rigidity make them a good testbed for the development of theoretical strategies that can complement the difficulties present in the experimental spectrum fitting. Classical and ab initio molecular dynamics trajectories are generated and employed as a source of structural information to compute average spectra for each MPc species. The original ZnPc force field employed in the classical molecular dynamics simulations has been modified in order to improve the agreement with the experimental EXAFS spectrum, and the modification strategy-based on MP2 optimized structures-being extended to the rest of MPcs. Both types of trajectories, classical and ab initio, provide very similar results, showing in all cases the main features present in the experimental spectra despite the different simulation timescales employed. Spectroscopical information has been analyzed on the basis of shells and legs contributions, making possible the comparison with the experimental fitting approaches. According to the simulations results, the simple relationships employed in the fitting process to define the dependence of the Debye Waller factors associated with multiple scattering paths with those of single scattering paths are reasonable. However, a lack of multiple backscattering paths contributions is found due to the intrinsic rigidity of the chemical motif (macrocycle). Its consequences in the Debye Waller factors of the fitted contributions are discussed.
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Affiliation(s)
| | | | - Rafael R Pappalardo
- Departamento de Química Física, Universidad de Sevilla, 41012 Seville, Spain
| | - José M Martínez
- Departamento de Química Física, Universidad de Sevilla, 41012 Seville, Spain
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8
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Dastafkan K, Shen X, Hocking RK, Meyer Q, Zhao C. Monometallic interphasic synergy via nano-hetero-interfacing for hydrogen evolution in alkaline electrolytes. Nat Commun 2023; 14:547. [PMID: 36725848 PMCID: PMC9892594 DOI: 10.1038/s41467-023-36100-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 01/16/2023] [Indexed: 02/03/2023] Open
Abstract
Electrocatalytic synergy is a functional yet underrated concept in electrocatalysis. Often, it materializes as intermetallic interaction between different metals. We demonstrate interphasic synergy in monometallic structures is as much effective. An interphasic synergy between Ni(OH)2 and Ni-N/Ni-C phases is reported for alkaline hydrogen evolution reaction that lowers the energy barriers for hydrogen adsorption-desorption and facilitates that of hydroxyl intermediates. This makes ready-to-serve Ni active sites and allocates a large amount of Ni d-states at Fermi level to promote charge redistribution from Ni(OH)2 to Ni-N/Ni-C and the co-adsorption of Hads and OHads intermediates on Ni-N/Ni-C moieties. As a result, a Ni(OH)2@Ni-N/Ni-C hetero-hierarchical nanostructure is developed, lowering the overpotentials to deliver -10 and -100 mA cm-2 in alkaline media by 102 and 113 mV, respectively, compared to monophasic Ni(OH)2 catalyst. This study unveils the interphasic synergy as an effective strategy to design monometallic electrocatalysts for water splitting and other energy applications.
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Affiliation(s)
- Kamran Dastafkan
- grid.1005.40000 0004 4902 0432School of Chemistry, UNSW Materials and Manufacturing Futures Institute, The University of New South Wales, Sydney, New South Wales 2052 Australia
| | - Xiangjian Shen
- grid.207374.50000 0001 2189 3846Engineering Research Center of Advanced Functional Material Manufacturing of Ministry of Education, Zhengzhou University, Zhengzhou, 450001 China
| | - Rosalie K. Hocking
- grid.1027.40000 0004 0409 2862Department of Chemistry and Biotechnology, Centre for Translational Atomaterials and ARC Training Centre for Surface Engineering for Advanced Material SEAM, Swinburne University of Technology, Hawthorn, VIC 3122 Australia
| | - Quentin Meyer
- grid.1005.40000 0004 4902 0432School of Chemistry, UNSW Materials and Manufacturing Futures Institute, The University of New South Wales, Sydney, New South Wales 2052 Australia
| | - Chuan Zhao
- grid.1005.40000 0004 4902 0432School of Chemistry, UNSW Materials and Manufacturing Futures Institute, The University of New South Wales, Sydney, New South Wales 2052 Australia
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9
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Chang Q, Liu Y, Lee JH, Ologunagba D, Hwang S, Xie Z, Kattel S, Lee JH, Chen JG. Metal-Coordinated Phthalocyanines as Platform Molecules for Understanding Isolated Metal Sites in the Electrochemical Reduction of CO 2. J Am Chem Soc 2022; 144:16131-16138. [PMID: 36007154 DOI: 10.1021/jacs.2c06953] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Single-atom catalysts (SACs) of non-precious transition metals (TMs) often show unique electrochemical performance, including the electrochemical carbon dioxide reduction reaction (CO2RR). However, the inhomogeneity in their structures makes it difficult to directly compare SACs of different TM for their CO2RR activity, selectivity, and reaction mechanisms. In this study, the comparison of isolated TMs (Fe, Co, Ni, Cu, and Zn) is systematically investigated using a series of crystalline molecular catalysts, namely TM-coordinated phthalocyanines (TM-Pcs), to directly compare the intrinsic role of the TMs with identical local coordination environments on the CO2RR performance. The combined experimental measurements, in situ characterization, and density functional theory calculations of TM-Pc catalysts reveal a TM-dependent CO2RR activity and selectivity, with the free energy difference of ΔG(*HOCO) - ΔG(*CO) being identified as a descriptor for predicting the CO2RR performance.
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Affiliation(s)
- Qiaowan Chang
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Yumeng Liu
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Ju-Hyeon Lee
- School of Materials Science and Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Damilola Ologunagba
- Department of Physics, Florida A&M University, Tallahassee, Florida 32307, United States
| | - Sooyeon Hwang
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Zhenhua Xie
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States.,Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Shyam Kattel
- Department of Physics, Florida A&M University, Tallahassee, Florida 32307, United States
| | - Ji Hoon Lee
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States.,School of Materials Science and Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jingguang G Chen
- Department of Chemical Engineering, Columbia University, New York, New York 10027, United States.,Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
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10
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Xie S, Chen X, Wang C, Lu YR, Chan TS, Chuang CH, Zhang J, Yan W, Jin S, Jin H, Wu X, Ji H. Role of the Metal Atom in a Carbon-Based Single-Atom Electrocatalyst for LiS Redox Reactions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2200395. [PMID: 35384295 DOI: 10.1002/smll.202200395] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/24/2022] [Indexed: 06/14/2023]
Abstract
Carbon-based single metal atom catalysts (SACs) are being extensively investigated to improve the kinetics of the Li-S redox reaction, which is greatly important for batteries with cell-level energy densities >500 W h kg-1 . However, there are contradictory reports regarding the electrocatalytic activities of the different metal atoms and the role of the metal atom in LiS chemistry still remains unclear. This is due to the complex relationship between the catalytic behavior and the structure of carbon-based SACs. Here, the catalytic behavior and active-site geometry, oxidation state, and the electronic structure of different metal centers (Fe/Co/Ni) embedded in nitrogen-doped graphene, and having similar physicochemical characteristics, are studied. Combining X-ray absorption spectroscopy, density functional theory calculations, and electrochemical analysis, it is revealed that the coordination-geometry and oxidation state of the metal atoms are modified when interacting with sulfur species. This interaction is strongly dependent on the hybridization of metal 3d and S p-orbitals. A moderate hybridization with the Fermi level crossing the metal 3d band is more favorable for LiS redox reactions. This study thus provides a fundamental understanding of how metal atoms in SACs impact LiS redox behavior and offers new guidelines to develop highly active catalytic materials for high-performance LiS batteries.
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Affiliation(s)
- Shuai Xie
- School of Chemistry and Material Sciences, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, 230026, China
| | - Xingjia Chen
- School of Chemistry and Material Sciences, CAS Key Laboratory of Materials for Energy Conversion, and CAS Center for Excellence in Nanoscience and Synergetic Innovation of Quantum Information and Quantum Technology, University of Science and Technology of China, Hefei, 230026, China
| | - Chao Wang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230026, China
| | - Yin-Rui Lu
- National Synchrotron Radiation Research Center, Hsinchu, 300, Taiwan
| | - Ting-Shan Chan
- National Synchrotron Radiation Research Center, Hsinchu, 300, Taiwan
| | - Cheng-Hao Chuang
- Department of Physics, Tamkang University, Tamsui 251, New Taipei City, 251301, Taiwan
| | - Jing Zhang
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, CAS, Beijing, 100049, China
| | - Wensheng Yan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230026, China
| | - Song Jin
- School of Chemistry and Material Sciences, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, 230026, China
| | - Hongchang Jin
- School of Chemistry and Material Sciences, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, 230026, China
| | - Xiaojun Wu
- School of Chemistry and Material Sciences, CAS Key Laboratory of Materials for Energy Conversion, and CAS Center for Excellence in Nanoscience and Synergetic Innovation of Quantum Information and Quantum Technology, University of Science and Technology of China, Hefei, 230026, China
| | - Hengxing Ji
- School of Chemistry and Material Sciences, CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, 230026, China
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11
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Ding T, Liu X, Tao Z, Liu T, Chen T, Zhang W, Shen X, Liu D, Wang S, Pang B, Wu D, Cao L, Wang L, Liu T, Li Y, Sheng H, Zhu M, Yao T. Atomically Precise Dinuclear Site Active toward Electrocatalytic CO 2 Reduction. J Am Chem Soc 2021; 143:11317-11324. [PMID: 34293258 DOI: 10.1021/jacs.1c05754] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The development of atomically precise dinuclear heterogeneous catalysts is promising to achieve efficient catalytic performance and is also helpful to the atomic-level understanding on the synergy mechanism under reaction conditions. Here, we report a Ni2(dppm)2Cl3 dinuclear-cluster-derived strategy to a uniform atomically precise Ni2 site, consisting of two Ni1-N4 moieties shared with two nitrogen atoms, anchored on a N-doped carbon. By using operando synchrotron X-ray absorption spectroscopy, we identify the dynamically catalytic dinuclear Ni2 structure under electrochemical CO2 reduction reaction, revealing an oxygen-bridge adsorption on the Ni2-N6 site to form an O-Ni2-N6 structure with enhanced Ni-Ni interaction. Theoretical simulations demonstrate that the key O-Ni2-N6 structure can significantly lower the energy barrier for CO2 activation. As a result, the dinuclear Ni2 catalyst exhibits >94% Faradaic efficiency for efficient carbon monoxide production. This work provides bottom-up target synthesis approaches and evidences the identity of dinuclear sites active toward catalytic reactions.
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Affiliation(s)
- Tao Ding
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, PR China
| | - Xiaokang Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, PR China
| | - Zhinan Tao
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China.,Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei 230601, China
| | - Tianyang Liu
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Tao Chen
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, PR China.,School of National Defense Science and Technology, Southwest University of Science and Technology, Mianyang 621010, PR China
| | - Wei Zhang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, PR China
| | - Xinyi Shen
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, PR China
| | - Dong Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, PR China
| | - Sicong Wang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, PR China
| | - Beibei Pang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, PR China
| | - Dan Wu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, PR China
| | - Linlin Cao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, PR China
| | - Lan Wang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, PR China.,School of National Defense Science and Technology, Southwest University of Science and Technology, Mianyang 621010, PR China
| | - Tong Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, PR China
| | - Yafei Li
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Hongting Sheng
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China.,Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei 230601, China
| | - Manzhou Zhu
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China.,Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei 230601, China
| | - Tao Yao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, PR China
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12
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Wang Q, Ina T, Chen WT, Shang L, Sun F, Wei S, Sun-Waterhouse D, Telfer SG, Zhang T, Waterhouse GIN. Evolution of Zn(II) single atom catalyst sites during the pyrolysis-induced transformation of ZIF-8 to N-doped carbons. Sci Bull (Beijing) 2020; 65:1743-1751. [PMID: 36659247 DOI: 10.1016/j.scib.2020.06.020] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/20/2020] [Accepted: 06/08/2020] [Indexed: 01/21/2023]
Abstract
The pyrolysis of zeolitic imidazolate frameworks (ZIFs) is becoming a popular approach for the synthesis of catalysts comprising porphyrin-like metal single atom catalysts (SACs) on N-doped carbons (M-N-C). Understanding the structural evolution of M-N-C as a function of ZIF pyrolysis temperature is important for realizing high performance catalysts. Herein, we report a detailed investigation of the evolution of Zn single atom catalyst sites during the pyrolysis of ZIF-8 at temperatures ranging from 500 to 900 °C. Results from Zn L-edge and Zn K-edge X-ray absorption spectroscopy studies reveal that tetrahedral ZnN4 centers in ZIF-8 transform to porphyrin-like ZnN4 centers supported on N-doped carbon at temperatures as low as 600 °C. As the pyrolysis temperature increased in the range 600-900 °C, the Zn atoms moved closer to the N4 coordination plane. This subtle geometry change in the ZnN4 sites alters the electron density on the Zn atoms (formally Zn2+), strongly impacting the catalytic performance for the peroxidase-like decomposition of H2O2. The catalyst obtained at 800 °C (Zn-N-C-800) offered the best performance for H2O2 decomposition. This work provides valuable new insights about the evolution of porphyrin-like single metal sites on N-doped carbons from ZIF precursors and the factors influencing SAC activity.
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Affiliation(s)
- Qing Wang
- School of Chemical Sciences, The University of Auckland, Auckland 1142, New Zealand
| | - Toshiaki Ina
- Research & Utilization Division, Japan Synchrotron Radiation Research Institute, Kouto 679-5148, Japan
| | - Wan-Ting Chen
- School of Chemical Sciences, The University of Auckland, Auckland 1142, New Zealand
| | - Lu Shang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Fanfei Sun
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Shanghai Wei
- Department of Chemical and Materials Engineering, Faculty of Engineering, The University of Auckland, Auckland 1142, New Zealand
| | | | - Shane G Telfer
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Massey University, Palmerston North 4442, New Zealand
| | - Tierui Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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13
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Ren W, Tan X, Chen X, Zhang G, Zhao K, Yang W, Jia C, Zhao Y, Smith SC, Zhao C. Confinement of Ionic Liquids at Single-Ni-Sites Boost Electroreduction of CO2 in Aqueous Electrolytes. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03873] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Wenhao Ren
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Xin Tan
- Integrated Materials Design Laboratory, Department of Applied Mathematics, Research School of Physics, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Xianjue Chen
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Guobin Zhang
- Department of Mechanical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Kangning Zhao
- College of Sciences & Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Wanfeng Yang
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Chen Jia
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Yong Zhao
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Sean C. Smith
- Integrated Materials Design Laboratory, Department of Applied Mathematics, Research School of Physics, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Chuan Zhao
- School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
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14
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Su DW, Ran J, Zhuang ZW, Chen C, Qiao SZ, Li YD, Wang GX. Atomically dispersed Ni in cadmium-zinc sulfide quantum dots for high-performance visible-light photocatalytic hydrogen production. SCIENCE ADVANCES 2020; 6:eaaz8447. [PMID: 32851158 PMCID: PMC7428344 DOI: 10.1126/sciadv.aaz8447] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 07/02/2020] [Indexed: 05/21/2023]
Abstract
Catalysts with a single atom site allow highly tuning of the activity, stability, and reactivity of heterogeneous catalysts. Therefore, atomistic understanding of the pertinent mechanism is essential to simultaneously boost the intrinsic activity, site density, electron transport, and stability. Here, we report that atomically dispersed nickel (Ni) in zincblende cadmium-zinc sulfide quantum dots (ZCS QDs) delivers an efficient and durable photocatalytic performance for water splitting under sunlight. The finely tuned Ni atoms dispersed in ZCS QDs exhibit an ultrahigh photocatalytic H2 production activity of 18.87 mmol hour-1 g-1. It could be ascribed to the favorable surface engineering to achieve highly active sites of monovalent Ni(I) and the surface heterojunctions to reinforce the carrier separation owing to the suitable energy band structures, built-in electric field, and optimized surface H2 adsorption thermodynamics. This work demonstrates a synergistic regulation of the physicochemical properties of QDs for high-efficiency photocatalytic H2 production.
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Affiliation(s)
- D. W. Su
- Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - J. Ran
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Z. W. Zhuang
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - C. Chen
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - S. Z. Qiao
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
- Corresponding author. (G.X.W.); (S.Z.Q.); (Y.D.L.)
| | - Y. D. Li
- Department of Chemistry, Tsinghua University, Beijing 100084, China
- Corresponding author. (G.X.W.); (S.Z.Q.); (Y.D.L.)
| | - G. X. Wang
- Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW 2007, Australia
- Corresponding author. (G.X.W.); (S.Z.Q.); (Y.D.L.)
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15
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Wang X, Peng X, Chen W, Liu G, Zheng A, Zheng L, Ni J, Au CT, Jiang L. Insight into dynamic and steady-state active sites for nitrogen activation to ammonia by cobalt-based catalyst. Nat Commun 2020; 11:653. [PMID: 32005833 PMCID: PMC6994663 DOI: 10.1038/s41467-020-14287-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 12/16/2019] [Indexed: 12/15/2022] Open
Abstract
The industrial synthesis of ammonia (NH3) using iron-based Haber-Bosch catalyst requires harsh reaction conditions. Developing advanced catalysts that perform well at mild conditions (<400 °C, <2 MPa) for industrial application is a long-term goal. Here we report a Co-N-C catalyst with high NH3 synthesis rate that simultaneously exhibits dynamic and steady-state active sites. Our studies demonstrate that the atomically dispersed cobalt weakly coordinated with pyridine N reacts with surface H2 to produce NH3 via a chemical looping pathway. Pyrrolic N serves as an anchor to stabilize the single cobalt atom in the form of Co1-N3.5 that facilitates N2 adsorption and step-by-step hydrogenation of N2 to *HNNH, *NH-NH3 and *NH2-NH4. Finally, NH3 is facilely generated via the breaking of the *NH2-NH4 bond. With the co-existence of dynamic and steady-state single atom active sites, the Co-N-C catalyst circumvents the bottleneck of N2 dissociation, making the synthesis of NH3 at mild conditions possible.
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Affiliation(s)
- Xiuyun Wang
- National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, 350002, Fuzhou, Fujian, China
| | - Xuanbei Peng
- National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, 350002, Fuzhou, Fujian, China
| | - Wei Chen
- National Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, 430071, Wuhan, China
| | - Guangyong Liu
- National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, 350002, Fuzhou, Fujian, China
| | - Anmin Zheng
- National Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, 430071, Wuhan, China.
| | - Lirong Zheng
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China
| | - Jun Ni
- National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, 350002, Fuzhou, Fujian, China
| | - Chak-Tong Au
- National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, 350002, Fuzhou, Fujian, China
| | - Lilong Jiang
- National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, 350002, Fuzhou, Fujian, China.
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16
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Miller NA, Michocki LB, Konar A, Alonso-Mori R, Deb A, Glownia JM, Sofferman DL, Song S, Kozlowski PM, Kubarych KJ, Penner-Hahn JE, Sension RJ. Ultrafast XANES Monitors Femtosecond Sequential Structural Evolution in Photoexcited Coenzyme B 12. J Phys Chem B 2020; 124:199-209. [PMID: 31850761 DOI: 10.1021/acs.jpcb.9b09286] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Polarized X-ray absorption near-edge structure (XANES) at the Co K-edge and broadband UV-vis transient absorption are used to monitor the sequential evolution of the excited-state structure of coenzyme B12 (adenosylcobalamin) over the first picosecond following excitation. The initial state is characterized by sub-100 fs sequential changes around the central cobalt. These are polarized first in the y-direction orthogonal to the transition dipole and 50 fs later in the x-direction along the transition dipole. Expansion of the axial bonds follows on a ca. 200 fs time scale as the molecule moves out of the Franck-Condon active region of the potential energy surface. On the same 200 fs time scale there are electronic changes that result in the loss of stimulated emission and the appearance of a strong absorption at 340 nm. These measurements provide a cobalt-centered movie of the excited molecule as it evolves to the local excited-state minimum.
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Affiliation(s)
- Nicholas A Miller
- Department of Chemistry , University of Michigan , 930 N. University Ave. , Ann Arbor , Michigan 48109-1055 , United States
| | - Lindsay B Michocki
- Department of Chemistry , University of Michigan , 930 N. University Ave. , Ann Arbor , Michigan 48109-1055 , United States
| | - Arkaprabha Konar
- Department of Physics , University of Michigan , 450 Church Street , Ann Arbor , Michigan 48109-1040 , United States
| | - Roberto Alonso-Mori
- Linac Coherent Light Source , SLAC National Accelerator Laboratory , 2575 Sand Hill Road , Menlo Park , California 94025 , United States
| | - Aniruddha Deb
- Department of Chemistry , University of Michigan , 930 N. University Ave. , Ann Arbor , Michigan 48109-1055 , United States.,Department of Biophysics , University of Michigan , 930 N. University Ave. , Ann Arbor , Michigan 48109-1055 , United States
| | - James M Glownia
- Linac Coherent Light Source , SLAC National Accelerator Laboratory , 2575 Sand Hill Road , Menlo Park , California 94025 , United States
| | - Danielle L Sofferman
- Program in Applied Physics , University of Michigan , 450 Church Street , Ann Arbor , Michigan 48109-1040 , United States
| | - Sanghoon Song
- Linac Coherent Light Source , SLAC National Accelerator Laboratory , 2575 Sand Hill Road , Menlo Park , California 94025 , United States
| | - Pawel M Kozlowski
- Department of Chemistry , University of Louisville , 2320 South Brook Street , Louisville , Kentucky 40292 , United States
| | - Kevin J Kubarych
- Department of Chemistry , University of Michigan , 930 N. University Ave. , Ann Arbor , Michigan 48109-1055 , United States.,Department of Biophysics , University of Michigan , 930 N. University Ave. , Ann Arbor , Michigan 48109-1055 , United States
| | - James E Penner-Hahn
- Department of Chemistry , University of Michigan , 930 N. University Ave. , Ann Arbor , Michigan 48109-1055 , United States.,Department of Biophysics , University of Michigan , 930 N. University Ave. , Ann Arbor , Michigan 48109-1055 , United States
| | - Roseanne J Sension
- Department of Chemistry , University of Michigan , 930 N. University Ave. , Ann Arbor , Michigan 48109-1055 , United States.,Department of Physics , University of Michigan , 450 Church Street , Ann Arbor , Michigan 48109-1040 , United States.,Department of Biophysics , University of Michigan , 930 N. University Ave. , Ann Arbor , Michigan 48109-1055 , United States
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17
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Denekamp IM, Deacon-Price C, Zhang Z, Rothenberg G. Covalent structured catalytic materials containing single-atom metal sites with controllable spatial and chemical properties: concept and application. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01299h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Keep your distance! A simple and effective protocol for connecting macrocycle polymers creates a new and versatile class of highly stable single-site catalytic materials.
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Affiliation(s)
- Ilse M. Denekamp
- Van't Hoff Institute for Molecular Science
- University of Amsterdam
- Amsterdam
- The Netherlands
| | - Connor Deacon-Price
- Van't Hoff Institute for Molecular Science
- University of Amsterdam
- Amsterdam
- The Netherlands
| | - Zhenhua Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Institute of Physical Chemistry
- Zhejiang Normal University
- Jinhua 321004
- P.R. China
| | - Gadi Rothenberg
- Van't Hoff Institute for Molecular Science
- University of Amsterdam
- Amsterdam
- The Netherlands
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18
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Chen Z, Liu C, Liu J, Li J, Xi S, Chi X, Xu H, Park IH, Peng X, Li X, Yu W, Liu X, Zhong L, Leng K, Huang W, Koh MJ, Loh KP. Cobalt Single-Atom-Intercalated Molybdenum Disulfide for Sulfide Oxidation with Exceptional Chemoselectivity. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1906437. [PMID: 31777990 DOI: 10.1002/adma.201906437] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 11/12/2019] [Indexed: 06/10/2023]
Abstract
The identification of chemoselective oxidation process en route to fine chemicals and specialty chemicals is a long-standing pursuit in chemical synthesis. A vertically structured, cobalt single atom-intercalated molybdenum disulfide catalyst (Co1 -in-MoS2 ) is developed for the chemoselective transformation of sulfides to sulfone derivatives. The single-atom encapsulation alters the electron structure of catalyst owing to confinement effect and strong metal-substrate interaction, thus enhancing adsorption of sulfides and chemoselective oxidation at the edge sites of MoS2 to achieve excellent yields of up to 99% for 34 examples. The synthetic scopes can be extended to sulfide-bearing alkenes, alkynes, aldehydes, ketones, boronic esters, and amines derivatives as a toolbox for the synthesis of high-value, multifunctional sulfones and late-stage functionalization of pharmaceuticals, e.g., Tamiflu. The synthetic utility of cobalt single atom-intercalated MoS2 , together with its reusability, scalability, and simplified purification process, renders it promising for industrial productions.
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Affiliation(s)
- Zhongxin Chen
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Cuibo Liu
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
- Department of Chemistry, Institute of Molecular Plus, School of Science, Tianjin University, Tianjin, 300072, China
| | - Jia Liu
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Jing Li
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Shibo Xi
- Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore, 627833, Singapore
| | - Xiao Chi
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Haisen Xu
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - In-Hyeok Park
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Xinwen Peng
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Xing Li
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Wei Yu
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Xiaowang Liu
- Institute of Flexible Electronics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Linxin Zhong
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Kai Leng
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Wei Huang
- Institute of Flexible Electronics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Ming Joo Koh
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Kian Ping Loh
- Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
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19
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Zhao D, Zhuang Z, Cao X, Zhang C, Peng Q, Chen C, Li Y. Atomic site electrocatalysts for water splitting, oxygen reduction and selective oxidation. Chem Soc Rev 2020; 49:2215-2264. [DOI: 10.1039/c9cs00869a] [Citation(s) in RCA: 363] [Impact Index Per Article: 90.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This review summarized the fabrication routes and characterization methods of atomic site electrocatalysts (ASCs) followed by their applications for water splitting, oxygen reduction and selective oxidation.
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Affiliation(s)
- Di Zhao
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Zewen Zhuang
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Xing Cao
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Chao Zhang
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Qing Peng
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Chen Chen
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Yadong Li
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
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20
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Kumar A, Naumenko D, Rossi G, Magnano E, Nappini S, Bondino F, Segoloni E, Amidani L, d'Acapito F, Boscherini F, Barba L, Pace E, Benfatto M, Casassa S, Pedio M. The effect of long-range order on intermolecular interactions in organic semiconductors: zinc octaethyl porphyrin molecular thin film model systems. Phys Chem Chem Phys 2019; 21:22966-22975. [PMID: 31599284 DOI: 10.1039/c9cp00954j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In order to optimize the performance of devices based on porphyrin thin films it is of great importance to gain a physical understanding of the various factors which affect their charge transport and light-harvesting properties. In this work, we have employed a multi-technique approach to study vacuum deposited zinc octaethyl porphyrin (ZnOEP) thin films with different degrees of long-range order as model systems. An asymmetrical stretching of the skeletal carbon atoms of the porphyrin conformer has been observed and attributed to ordered molecular stacking and intermolecular interactions. For ordered films, a detailed fitting analysis of the X-ray absorption near edge structure (XANES) using the MXAN code establishes a symmetry reduction in the molecular conformer involving the skeletal carbon atoms of the porphyrin ring; this highlights the consequences of increased π-π stacking of ZnOEP molecules adopting the triclinic structure. The observed asymmetrical stretching of the π conjugation network of the porphyrin structure can have significant implications for charge transport and light harvesting, significantly influencing the performance of porphyrin based devices.
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Affiliation(s)
- A Kumar
- Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, TASC Laboratory, Trieste, Italy.
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Jia Q, Liu E, Jiao L, Pann S, Mukerjee S. X-Ray Absorption Spectroscopy Characterizations on PGM-Free Electrocatalysts: Justification, Advantages, and Limitations. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1805157. [PMID: 30575135 DOI: 10.1002/adma.201805157] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 10/17/2018] [Indexed: 05/06/2023]
Abstract
Transition metals embedded in nitrogen-doped carbon matrices (denoted as M-N-C) are the leading platinum group metal (PGM)-free electrocatalysts for the oxygen reduction reaction (ORR) in acid, and are the most promising candidates for replacing platinum in practical devices such as fuel cells. Two of the long-standing puzzles in the field are the nature of active sites for the ORR and the reaction mechanism. Poor understanding of the structural and mechanistic basis for the exceptional ORR activity of M-N-C electrocatalysts impedes rational design for further improvements. Recently, synchrotron-based X-ray absorption spectroscopy (XAS) has been successfully implemented to shed some light on these two issues. In this context, a critical review is given to detail the contribution of XAS to the advancement of the M-N-C electrocatalysis to highlight its advantages and limitations.
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Affiliation(s)
- Qingying Jia
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA, 02115, USA
| | - Ershuai Liu
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA, 02115, USA
| | - Li Jiao
- Department of Chemical Engineering, Northeastern University, Boston, MA, 02115, USA
| | - Serge Pann
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA, 02115, USA
| | - Sanjeev Mukerjee
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA, 02115, USA
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22
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Perera SD, Urquhart SG. Systematic Investigation of π–π Interactions in Near-Edge X-ray Fine Structure (NEXAFS) Spectroscopy of Paracyclophanes. J Phys Chem A 2017; 121:4907-4913. [DOI: 10.1021/acs.jpca.7b03823] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sahan D. Perera
- Department of Chemistry, University of Saskatchewan, Treaty Six
Territory, Saskatoon, Saskatchewan, Canada S7N 5C9
| | - Stephen G. Urquhart
- Department of Chemistry, University of Saskatchewan, Treaty Six
Territory, Saskatoon, Saskatchewan, Canada S7N 5C9
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