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Weyel J, Hess C. Refining the mechanism of CO 2 and H 2 activation over gold-ceria catalysts by IR modulation excitation spectroscopy. Phys Chem Chem Phys 2024; 26:6608-6615. [PMID: 38333955 DOI: 10.1039/d3cp05102a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
The activation and utilization of the greenhouse gas CO2 is of great interest for the energy transition as a fossil-free carbon source for mitigating climate change. CO2 hydrogenation via the reverse water-gas shift reaction (RWGSR) converts CO2 to CO, a crucial component of syngas, enabling further transformation by means of the Fischer-Tropsch process. In this study, we unravel the detailed mechanism of the RWGSR on low-loaded Au/CeO2 catalysts using IR modulation excitation spectroscopy (MES), by periodically modulating the concentration of the reactants, followed by phase-sensitive detection (PSD). Applying such a MES-PSD approach to Au/CeO2 catalysts during RWGSR gives direct spectroscopic evidence for the active role of gold hydride, bidentate carbonate and hydroxyl species in the reaction mechanism, while disproving the participation of other species such as formate. Our results highlight the potential of modulation excitation spectroscopy combined with phase-sensitive detection to provide new mechanistic insight into catalytic reactions not accessible by steady-state techniques, including a profound understanding of the sequence of reaction steps.
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Affiliation(s)
- Jakob Weyel
- Eduard-Zintl-Institute of Inorganic and Physical Chemistry, Technical University of Darmstadt, Peter-Grünberg-Str. 8, 64287 Darmstadt, Germany.
| | - Christian Hess
- Eduard-Zintl-Institute of Inorganic and Physical Chemistry, Technical University of Darmstadt, Peter-Grünberg-Str. 8, 64287 Darmstadt, Germany.
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2
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Liu H, Wei X, Fang Y, Chen J. Self-Promoted H 2 Formation: The Feasibility of Photoinduced CO Removal for Lossless Hydrogen Purification. J Phys Chem Lett 2023; 14:2087-2091. [PMID: 36799541 DOI: 10.1021/acs.jpclett.3c00085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
A photoinduced radical reaction operated at low temperature can be used to remove trace CO from a H2 stream by minimizing the reverse water-gas shift. However, H2 consumption resulting from nonselective oxidation by hydroxyl radicals becomes an obstacle to practical hydrogen purification. Inspired by hydrogen exchange transfer, we demonstrate here that molecular hydrogen can promote H2 formation from hydrogen radicals, which are generated from the reaction of CO and H2 with hydroxyl radicals. The slight increment in H2 along with the radical reaction encouraged us to configure a photocatalytic hydrogen purification fixed-bed reactor, which can reduce CO to ≤1 ppm in the H2 stream.
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Affiliation(s)
- Haifeng Liu
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xuhui Wei
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Yao Fang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Jiazang Chen
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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3
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Ahn SY, Jang WJ, Shim JO, Jeon BH, Roh HS. CeO 2-based oxygen storage capacity materials in environmental and energy catalysis for carbon neutrality: extended application and key catalytic properties. CATALYSIS REVIEWS 2023. [DOI: 10.1080/01614940.2022.2162677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Seon-Yong Ahn
- Department of Environmental and Energy Engineering, Yonsei University, Wonju-si, South Korea
| | - Won-Jun Jang
- Department of Environmental and Energy Engineering, Kyungnam University, Changwon-si, South Korea
| | - Jae-Oh Shim
- Department of Chemical Engineering, Wonkwang University, Iksan-si, South Korea
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, South Korea
| | - Hyun-Seog Roh
- Department of Environmental and Energy Engineering, Yonsei University, Wonju-si, South Korea
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4
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Carbon Dioxide Conversion on Supported Metal Nanoparticles: A Brief Review. Catalysts 2023. [DOI: 10.3390/catal13020305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
The increasing concentration of anthropogenic CO2 in the air is one of the main causes of global warming. The Paris Agreement at COP 21 aims to reach the global peak of greenhouse gas emissions in the second half of this century, with CO2 conversion towards valuable added compounds being one of the main strategies, especially in the field of heterogeneous catalysis. In the current search for new catalysts, the deposition of metallic nanoparticles (NPs) supported on metal oxides and metal carbide surfaces paves the way to new catalytic solutions. This review provides a comprehensive description and analysis of the relevant literature on the utilization of metal-supported NPs as catalysts for CO2 conversion to useful chemicals and propose that the next catalysts generation can be led by single-metal-atom deposition, since in general, small metal particles enhance the catalytic activity. Among the range of potential indicators of catalytic activity and selectivity, the relevance of NPs’ size, the strong metal–support interactions, and the formation of vacancies on the support are exhaustively discussed from experimental and computational perspective.
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5
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Gao X, Cai P, Wang Z, Lv X, Kawi S. Surface Acidity/Basicity and Oxygen Defects of Metal Oxide: Impacts on Catalytic Performances of CO2 Reforming and Hydrogenation Reactions. Top Catal 2022. [DOI: 10.1007/s11244-022-01708-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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A Review of CeO2 Supported Catalysts for CO2 Reduction to CO through the Reverse Water Gas Shift Reaction. Catalysts 2022. [DOI: 10.3390/catal12101101] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The catalytic conversion of CO2 to CO by the reverse water gas shift (RWGS) reaction followed by well-established synthesis gas conversion technologies could be a practical technique to convert CO2 to valuable chemicals and fuels in industrial settings. For catalyst developers, prevention of side reactions like methanation, low-temperature activity, and selectivity enhancements for the RWGS reaction are crucial concerns. Cerium oxide (ceria, CeO2) has received considerable attention in recent years due to its exceptional physical and chemical properties. This study reviews the use of ceria-supported active metal catalysts in RWGS reaction along with discussing some basic and fundamental features of ceria. The RWGS reaction mechanism, reaction kinetics on supported catalysts, as well as the importance of oxygen vacancies are also explored. Besides, recent advances in CeO2 supported metal catalyst design strategies for increasing CO2 conversion activity and selectivity towards CO are systematically identified, summarized, and assessed to understand the impacts of physicochemical parameters on catalytic performance such as morphologies, nanosize effects, compositions, promotional abilities, metal-support interactions (MSI) and the role of selected synthesis procedures for forming distinct structural morphologies. This brief review may help with future RWGS catalyst design and optimization.
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7
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Weyel J, Ziemba M, Hess C. Elucidating Active CO–Au Species on Au/CeO2(111): A Combined Modulation Excitation DRIFTS and Density Functional Theory Study. Top Catal 2022. [DOI: 10.1007/s11244-022-01599-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
AbstractIn this work we elucidate the main steps of the CO oxidation mechanism over Au/CeO2(111), clarifying the course of CO adsorption at a broad variety of surface sites as well as of transmutations of one CO species into another. By combining transient spectroscopy with DFT calculations we provide new evidence that the active centers for CO conversion are single gold atoms. To gain insight into the reaction mechanism, we employ Modulation Excitation (ME) DRIFT spectroscopy in combination with the mathematical tool of Phase Sensitive Detection to identify the active species and perform DFT calculations to facilitate the assignments of the observed bands. The transient nature of the ME-DRIFTS method allows us to sort the observed species temporally, providing further mechanistic insight. Our study highlights the potential of combined transient spectroscopy and theoretical calculations (DFT) to clarify the role of adsorbates observed and to elucidate the reaction mechanism of CO oxidation over supported gold and other noble-metal catalysts.
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8
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Abdel-Mageed AM, Chen S, Fauth C, Häring T, Bansmann J. Fundamental Aspects of Ceria Supported Au Catalysts Probed by In Situ/Operando Spectroscopy and TAP Reactor Studies. Chemphyschem 2021; 22:1302-1315. [PMID: 33908151 PMCID: PMC8362095 DOI: 10.1002/cphc.202100027] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 04/17/2021] [Indexed: 11/30/2022]
Abstract
The discovery of the activity of dispersed gold nanoparticles three decades ago paved the way for a new era in catalysis. The unusual behavior of these catalysts sparked many questions about their working mechanism. In particular, Au/CeO2 proved to be an efficient catalyst in several reactions such as CO oxidation, water gas shift, and CO2 reduction. Here, by employing findings from operando X‐ray absorption spectroscopy at the near and extended Au and Ce LIII energy edges, we focus on the fundamental aspects of highly active Au/CeO2 catalysts, mainly in the CO oxidation for understanding their complex structure‐reactivity relationship. These results were combined with findings from in situ diffuse reflectance FTIR and Raman spectroscopy, highlighting the changes of adlayer and ceria defects. For a comprehensive understanding, the spectroscopic findings will be supplemented by results of the dynamics of O2 activation obtained from Temporal Analysis of Products (TAP). Merging these results illuminates the complex relationship among the oxidation state, size of the Au nanoparticles, the redox properties of CeO2 support, and the dynamics of O2 activation.
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Affiliation(s)
- Ali M Abdel-Mageed
- Institute of Surface Chemistry and Catalysis, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany.,Department of Chemistry, Faculty of Science, Cairo University, 12613, Giza, Egypt
| | - Shilong Chen
- Institute of Surface Chemistry and Catalysis, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany.,Institute of Inorganic Chemistry, Kiel University, Max-Eyth-Str. 2, 24118, Kiel, Germany
| | - Corinna Fauth
- Institute of Surface Chemistry and Catalysis, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
| | - Thomas Häring
- Institute of Surface Chemistry and Catalysis, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
| | - Joachim Bansmann
- Institute of Surface Chemistry and Catalysis, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
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9
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Ronda-Lloret M, Yang L, Hammerton M, Marakatti VS, Tromp M, Sofer Z, Sepúlveda-Escribano A, Ramos-Fernandez EV, Delgado JJ, Rothenberg G, Ramirez Reina T, Shiju NR. Molybdenum Oxide Supported on Ti 3AlC 2 is an Active Reverse Water-Gas Shift Catalyst. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2021; 9:4957-4966. [PMID: 33868834 PMCID: PMC8045458 DOI: 10.1021/acssuschemeng.0c07881] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 01/31/2021] [Indexed: 05/31/2023]
Abstract
MAX phases are layered ternary carbides or nitrides that are attractive for catalysis applications due to their unusual set of properties. They show high thermal stability like ceramics, but they are also tough, ductile, and good conductors of heat and electricity like metals. Here, we study the potential of the Ti3AlC2 MAX phase as a support for molybdenum oxide for the reverse water-gas shift (RWGS) reaction, comparing this new catalyst to more traditional materials. The catalyst showed higher turnover frequency values than MoO3/TiO2 and MoO3/Al2O3 catalysts, due to the outstanding electronic properties of the Ti3AlC2 support. We observed a charge transfer effect from the electronically rich Ti3AlC2 MAX phase to the catalyst surface, which in turn enhances the reducibility of MoO3 species during reaction. The redox properties of the MoO3/Ti3AlC2 catalyst improve its RWGS intrinsic activity compared to TiO2- and Al2O3-based catalysts.
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Affiliation(s)
- Maria Ronda-Lloret
- Van’t
Hoff Institute for Molecular Sciences, University
of Amsterdam, Science
Park 904, Amsterdam 1090
GD, The Netherlands
| | - Liuqingqing Yang
- Department
of Chemical and Process Engineering, University
of Surrey, Guildford GU2 7XH, U.K.
| | - Michelle Hammerton
- Materials
Chemistry, Zernike Institute for Advanced
Materials, Nijenborgh
4, Groningen 9747AG, The Netherlands
| | - Vijaykumar S. Marakatti
- Molecular
Chemistry, Materials and Catalysis (MOST), Institute of Condensed Matter and Nanosciences (IMCN), Université
Catholique de Louvain (UCLouvain), Place Louis Pasteur 1, L4.01.09,Louvain-la-Neuve B-1348, Belgium
| | - Moniek Tromp
- Materials
Chemistry, Zernike Institute for Advanced
Materials, Nijenborgh
4, Groningen 9747AG, The Netherlands
| | - Zdeněk Sofer
- Department
of Inorganic Chemistry, University of Chemistry
and Technology Prague, Technická 5, Prague 6 166 28, Czech Republic
| | - Antonio Sepúlveda-Escribano
- Laboratorio
de Materiales Avanzados, Departamento de Química Inorgánica—Instituto
Universitario de Materiales de Alicante, Universidad de Alicante, Apartado 99, Alicante E-03080, Spain
| | - Enrique V. Ramos-Fernandez
- Laboratorio
de Materiales Avanzados, Departamento de Química Inorgánica—Instituto
Universitario de Materiales de Alicante, Universidad de Alicante, Apartado 99, Alicante E-03080, Spain
| | - Juan Jose Delgado
- Departamento
de Ciencia de los Materiales e Ingeniería Metalúrgica
y Química Inorgánica, e IMEYMAT, Instituto Universitario de Investigación en Microscopía
Electrónica y Materiales, Universidad de Cádiz, Puerto Real 11510, Spain
| | - Gadi Rothenberg
- Van’t
Hoff Institute for Molecular Sciences, University
of Amsterdam, Science
Park 904, Amsterdam 1090
GD, The Netherlands
| | - Tomas Ramirez Reina
- Department
of Chemical and Process Engineering, University
of Surrey, Guildford GU2 7XH, U.K.
| | - N. Raveendran Shiju
- Van’t
Hoff Institute for Molecular Sciences, University
of Amsterdam, Science
Park 904, Amsterdam 1090
GD, The Netherlands
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10
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Bezkrovnyi OS, Kraszkiewicz P, Mista W, Kepinski L. The Sintering of Au Nanoparticles on Flat {100}, {111} and Zigzagged {111}-Nanofacetted Structures of Ceria and Its Influence on Catalytic Activity in CO Oxidation and CO PROX. Catal Letters 2021. [DOI: 10.1007/s10562-020-03370-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
AbstractThe thermal stability of Au nanoparticles on ceria support of various morphology (nanocubes, nanooctahedra, and {111}-nanofacetted nanocubes) in oxidizing and reducing atmospheres was investigated by electron microscopy. A beneficial effect of the reconstruction of edges of ceria nanocubes into zigzagged {111}-nanofacetted structures on the inhibition of sintering of Au nanoparticles was shown. The influence of different morphology of Au particles on various ceria supports on the reducibility and catalytic activity in CO oxidation, and CO PROX of Au/ceria catalysts was also investigated and discussed. It was shown, that ceria nanocubes with flat {110} terminated edges are more suitable as a support for Au nanoparticles, used to catalyze CO oxidation, than zigzagged {111}- nanofacetted structures.
Graphic Abstract
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11
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Jurković DL, Prašnikar A, Pohar A, Likozar B. Surface structure-based CO2 reduction reaction modelling over supported copper catalysts. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2020.101234] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Selective Removal of CO in Hydrocarbons-Rich Industrial Off-gases over CuO–CexZr1−xO2 Catalysts. CATALYSIS SURVEYS FROM ASIA 2020. [DOI: 10.1007/s10563-020-09314-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Rezvani A, Abdel-Mageed AM, Ishida T, Murayama T, Parlinska-Wojtan M, Behm RJ. CO2 Reduction to Methanol on Au/CeO2 Catalysts: Mechanistic Insights from Activation/Deactivation and SSITKA Measurements. ACS Catal 2020. [DOI: 10.1021/acscatal.9b04655] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Azita Rezvani
- Institute of Surface Chemistry and Catalysis, Ulm University, Albert-Einstein-Allee 47, D-89081 Ulm, Germany
| | - Ali M. Abdel-Mageed
- Institute of Surface Chemistry and Catalysis, Ulm University, Albert-Einstein-Allee 47, D-89081 Ulm, Germany
| | - Tamao Ishida
- Research Center for Gold Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - Toru Murayama
- Research Center for Gold Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | | | - R. Jürgen Behm
- Institute of Surface Chemistry and Catalysis, Ulm University, Albert-Einstein-Allee 47, D-89081 Ulm, Germany
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14
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Aguirre A, Collins SE. Design of an optimized DRIFT cell/microreactor for spectrokinetic investigations of surface reaction mechanisms. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2018.07.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Boosting the catalysis of gold by O 2 activation at Au-SiO 2 interface. Nat Commun 2020; 11:558. [PMID: 31992700 PMCID: PMC6987105 DOI: 10.1038/s41467-019-14241-8] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 12/13/2019] [Indexed: 11/30/2022] Open
Abstract
Supported gold (Au) nanocatalysts have attracted extensive interests in the past decades because of their unique catalytic properties for a number of key chemical reactions, especially in (selective) oxidations. The activation of O2 on Au nanocatalysts is crucial and remains a challenge because only small Au nanoparticles (NPs) can effectively activate O2. This severely limits their practical application because Au NPs inevitably sinter into larger ones during reaction due to their low Taman temperature. Here we construct a Au-SiO2 interface by depositing thin SiO2 layer onto Au/TiO2 and calcination at high temperatures and demonstrate that the interface can be not only highly sintering resistant but also extremely active for O2 activation. This work provides insights into the catalysis of Au nanocatalysts and paves a way for the design and development of highly active supported Au catalysts with excellent thermal stability. The development of sintering resistant supported Au catalysts with high activity still remains a challenge. Here the authors construct a Au-SiO2 interface by depositing SiO2 thin layer onto Au/TiO2 catalyst which shows very high activity in CO oxidation even after calcination at 800 °C.
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16
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Ishida T, Murayama T, Taketoshi A, Haruta M. Importance of Size and Contact Structure of Gold Nanoparticles for the Genesis of Unique Catalytic Processes. Chem Rev 2019; 120:464-525. [DOI: 10.1021/acs.chemrev.9b00551] [Citation(s) in RCA: 249] [Impact Index Per Article: 49.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Tamao Ishida
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Gold Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Toru Murayama
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Gold Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Ayako Taketoshi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Gold Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
| | - Masatake Haruta
- Research Center for Gold Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University 1-1 Minami-Osawa, Hachioji, Tokyo 192-0397, Japan
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17
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Zhang M, Zijlstra B, Filot IAW, Li F, Wang H, Li J, Hensen EJM. A theoretical study of the reverse water‐gas shift reaction on Ni(111) and Ni(311) surfaces. CAN J CHEM ENG 2019. [DOI: 10.1002/cjce.23655] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Min Zhang
- Hebei Provincial Key Laboratory of Green Chemical Technology and High Efficient Energy Saving, School of Chemical Engineering and TechnologyHebei University of Technology Tianjin China
- Laboratory of Inorganic Materials and Catalysis, Schuit Institute of Catalysis, Department of Chemical Engineering and ChemistryEindhoven University of Technology Eindhoven The Netherlands
| | - Bart Zijlstra
- Laboratory of Inorganic Materials and Catalysis, Schuit Institute of Catalysis, Department of Chemical Engineering and ChemistryEindhoven University of Technology Eindhoven The Netherlands
| | - Ivo A. W. Filot
- Laboratory of Inorganic Materials and Catalysis, Schuit Institute of Catalysis, Department of Chemical Engineering and ChemistryEindhoven University of Technology Eindhoven The Netherlands
| | - Fang Li
- Hebei Provincial Key Laboratory of Green Chemical Technology and High Efficient Energy Saving, School of Chemical Engineering and TechnologyHebei University of Technology Tianjin China
| | - Haiou Wang
- Hebei Provincial Key Laboratory of Green Chemical Technology and High Efficient Energy Saving, School of Chemical Engineering and TechnologyHebei University of Technology Tianjin China
| | - Jingde Li
- Hebei Provincial Key Laboratory of Green Chemical Technology and High Efficient Energy Saving, School of Chemical Engineering and TechnologyHebei University of Technology Tianjin China
| | - Emiel J. M. Hensen
- Laboratory of Inorganic Materials and Catalysis, Schuit Institute of Catalysis, Department of Chemical Engineering and ChemistryEindhoven University of Technology Eindhoven The Netherlands
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18
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Dynamic changes of Au/ZnO catalysts during methanol synthesis: A model study by temporal analysis of products (TAP) and Zn LIII near Edge X-Ray absorption spectroscopy. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.11.074] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Tabakova T. Recent Advances in Design of Gold-Based Catalysts for H 2 Clean-Up Reactions. Front Chem 2019; 7:517. [PMID: 31448254 PMCID: PMC6692441 DOI: 10.3389/fchem.2019.00517] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 07/05/2019] [Indexed: 11/13/2022] Open
Abstract
Over the past three decades, supported gold nanoparticles have demonstrated outstanding properties and continue to attract the interest of the scientific community. Several books and comprehensive reviews as well as numerous papers cover a variety of fundamental and applied aspects specific to gold-based catalyst synthesis, characterization by different techniques, relationship among catalyst support features, electronic and structural properties of gold particles, and catalytic activity, reaction mechanism, and theoretical modeling. Among the Au-catalyzed reactions targeting environmental protection and sustainable energy applications, particular attention is paid to pure hydrogen production. The increasing demands for high-purity hydrogen for fuel cell systems caused a renewed interest in the water-gas shift reaction. This well-known industrial process provides an attractive way for hydrogen generation and additional increase of its concentration in the gas mixtures obtained by processes utilizing coal, petroleum, or biomass resources. An effective step for further elimination of CO traces from the reformate stream after water-gas shift unit is the preferential CO oxidation. Developing highly active, stable, and selective catalysts for these two reactions is of primary importance for efficient upgrading of hydrogen purity in fuel cell applications. This review aims to extend the existing knowledge and understanding of the properties of gold-based catalysts for H2 clean-up reactions. In particular, new approaches and strategies for design of high-performing and cost-effective formulations are addressed. Emphasis is placed on efforts to explore appropriate and economically viable supports with complex composition prepared by various synthesis procedures. Relevance of ceria application as a support for new-generation WGS catalysts is pointed out. The role of the nature of support in catalyst behavior and specifically the existence of an active gold-support interface is highlighted. Long-term stability and tolerance toward start-up/shutdown cycling are discussed. Very recent advances in catalyst design are described focusing on structured catalysts and microchannel reactors. The latest mechanistic aspects of the water-gas shift reaction and preferential CO oxidation over gold-based catalysts from density functional theory calculations are noted because of their essential role in discovering novel highly efficient catalysts.
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Affiliation(s)
- Tatyana Tabakova
- Institute of Catalysis, Bulgarian Academy of Sciences, Sofia, Bulgaria
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20
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Abdel-Mageed AM, Klyushin A, Knop-Gericke A, Schlögl R, Behm RJ. Influence of CO on the Activation, O-Vacancy Formation, and Performance of Au/ZnO Catalysts in CO 2 Hydrogenation to Methanol. J Phys Chem Lett 2019; 10:3645-3653. [PMID: 31192610 DOI: 10.1021/acs.jpclett.9b00925] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The impact of CO on the activation and reaction characteristics of Au/ZnO catalysts in methanol synthesis from a CO2/H2 mixture was studied by kinetic, near ambient pressure X-ray photoelectron spectroscopy and X-ray absorption spectroscopy at the O K-edge, together with in situ Foureir transform infrared measurements. Transient measurements under up to industrial reaction conditions (50 bar, 240 °C) show a pronounced transient increase of the activity for methanol formation from CO2/H2 after exposure to a CO/H2 reaction gas mixture, while the steady-state activity is similar to that observed directly after oxidative pretreatment. For the reaction in CO/H2, the much longer activation phase is accompanied by formation of CO2 due to reaction of CO with the ZnO catalyst support. This leads to O-vacancy formation on the support at an extent significantly higher than in CO2/H2. The consequences of these findings on the mechanistic understanding of methanol formation from CO2/H2 on Au/ZnO and for ZnO-supported catalysts in general are discussed.
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Affiliation(s)
- Ali M Abdel-Mageed
- Institute of Surface Chemistry and Catalysis , Ulm University , Albert-Einstein-Allee 47 , D-89081 Ulm , Germany
| | - Alexander Klyushin
- Fritz-Haber-Institut der Max-Planck-Gesellschaft , Faradayweg 4-6 , D-14195 Berlin , Germany
- Max Planck Institute for Chemical Energy Conversion, Heterogeneous Reactions , Stiftstrasse 34-36 , D-45470 Mülheim , Germany
- Helmholtz-Zentrum Berlin für Materialien und Energie, BESSY II , Albert-Einstein-Straße 15 , D-12489 Berlin , Germany
| | - Axel Knop-Gericke
- Fritz-Haber-Institut der Max-Planck-Gesellschaft , Faradayweg 4-6 , D-14195 Berlin , Germany
- Max Planck Institute for Chemical Energy Conversion, Heterogeneous Reactions , Stiftstrasse 34-36 , D-45470 Mülheim , Germany
| | - Robert Schlögl
- Fritz-Haber-Institut der Max-Planck-Gesellschaft , Faradayweg 4-6 , D-14195 Berlin , Germany
- Max Planck Institute for Chemical Energy Conversion, Heterogeneous Reactions , Stiftstrasse 34-36 , D-45470 Mülheim , Germany
| | - R Jürgen Behm
- Institute of Surface Chemistry and Catalysis , Ulm University , Albert-Einstein-Allee 47 , D-89081 Ulm , Germany
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21
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Boaro M, Colussi S, Trovarelli A. Ceria-Based Materials in Hydrogenation and Reforming Reactions for CO 2 Valorization. Front Chem 2019; 7:28. [PMID: 30838198 PMCID: PMC6382745 DOI: 10.3389/fchem.2019.00028] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 01/11/2019] [Indexed: 12/31/2022] Open
Abstract
Reducing greenhouse emissions is of vital importance to tackle the climate changes and to decrease the carbon footprint of modern societies. Today there are several technologies that can be applied for this goal and especially there is a growing interest in all the processes dedicated to manage CO2 emissions. CO2 can be captured, stored or reused as carbon source to produce chemicals and fuels through catalytic technologies. This study reviews the use of ceria based catalysts in some important CO2 valorization processes such as the methanation reaction and methane dry-reforming. We analyzed the state of the art with the aim of highlighting the distinctive role of ceria in these reactions. The presence of cerium based oxides generally allows to obtain a strong metal-support interaction with beneficial effects on the dispersion of active metal phases, on the selectivity and durability of the catalysts. Moreover, it introduces different functionalities such as redox and acid-base centers offering versatility of approaches in designing and engineering more powerful formulations for the catalytic valorization of CO2 to fuels.
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Affiliation(s)
- Marta Boaro
- Dipartimento Politecnico, Università di Udine, Udine, Italy
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22
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Zhan Y, Liu Y, Peng X, Zhao W, Zhang Y, Wang X, Au CT, Jiang L. Molecular-level understanding of reaction path optimization as a function of shape concerning the metal–support interaction effect of Co/CeO2 on water-gas shift catalysis. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01260e] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
In this work, the active sites generated in hydrogen reduction and the reaction pathways for the water gas shift (WGS) reaction over Co/CeO2 catalysts were studied by in situ XAS and XPS coupled with DFT+U calculations.
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Affiliation(s)
- Yingying Zhan
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- China
| | - Yi Liu
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- China
| | - Xuanbei Peng
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- China
| | - Weitao Zhao
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- China
| | - Yongfan Zhang
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- China
| | - Xiuyun Wang
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- China
| | - Chak-tong Au
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- China
| | - Lilong Jiang
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- China
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23
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Sun Y, Liu W, Tian M, Wang L, Wang Z. Tuning the metal-support interaction in the thermal-resistant Au-CeO 2 catalysts for CO oxidation: influence of a mild N 2 pretreatment. RSC Adv 2018; 8:39197-39202. [PMID: 35558316 PMCID: PMC9090844 DOI: 10.1039/c8ra07278g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 11/06/2018] [Indexed: 01/01/2023] Open
Abstract
Pretreatment is very important for altering the catalytic properties of the supported noble metal catalysts in many heterogeneous reactions. In this study, a simple and mild pretreatment with N2 has been reported to re-activate the Au–CeO2 catalysts that were prepared by a deposition–precipitation method followed by calcination at 600 °C. Upon N2 pretreatment at 200 °C, the metal-support interaction between Au nanoparticles (NPs) and CeO2 was observed with the evidence of particular coverage of Au nanoparticles by CeO2, electronic interactions and changes in CO adsorption ability. As a result, the CO oxidation activity of the pretreated Au–CeO2 catalysts largely improved compared with those without any pretreatment and even with those subjected to H2 and O2 pretreatments. N2 pretreatment also makes the Au NPs more resistant to sintering at high temperature. Furthermore, this mild pretreatment strategy can provide a potential approach to improve the thermal stability of other supported noble metal catalysts. The degree of encapsulation for Au–CeO2 catalysts was identical to the catalysts exhibiting metal-support interaction, which improved the CO oxidation activity.![]()
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Affiliation(s)
- Yuqi Sun
- School of Water Conservancy and Environment, University of Jinan Jinan 250022 China
| | - Wei Liu
- School of Water Conservancy and Environment, University of Jinan Jinan 250022 China
| | - Miao Tian
- School of Water Conservancy and Environment, University of Jinan Jinan 250022 China
| | - Liguo Wang
- School of Water Conservancy and Environment, University of Jinan Jinan 250022 China
| | - Zhongpeng Wang
- School of Water Conservancy and Environment, University of Jinan Jinan 250022 China
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24
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Schlexer P, Widmann D, Behm RJ, Pacchioni G. CO Oxidation on a Au/TiO2 Nanoparticle Catalyst via the Au-Assisted Mars–van Krevelen Mechanism. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01751] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Philomena Schlexer
- Dipartimento di Scienza dei Materiali, Universitá Milano-Bicocca, Milan I-20125, Italy
| | - Daniel Widmann
- Institute of Surface Chemistry and Catalysis, Ulm University, D-89069 Ulm, Germany
| | - R. Jürgen Behm
- Institute of Surface Chemistry and Catalysis, Ulm University, D-89069 Ulm, Germany
| | - Gianfranco Pacchioni
- Dipartimento di Scienza dei Materiali, Universitá Milano-Bicocca, Milan I-20125, Italy
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25
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Zhao X, Xu H, Wang X, Zheng Z, Xu Z, Ge J. Monodisperse Metal-Organic Framework Nanospheres with Encapsulated Core-Shell Nanoparticles Pt/Au@Pd@{Co 2(oba) 4(3-bpdh) 2}4H 2O for the Highly Selective Conversion of CO 2 to CO. ACS APPLIED MATERIALS & INTERFACES 2018; 10:15096-15103. [PMID: 29641173 DOI: 10.1021/acsami.8b03561] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A new microporous metal-organic framework (MOF) with formula {Co2(oba)4(3-bpdh)2}4H2O [oba = 4,4'-oxybis(benzoic acid); 3-bpdh = N, N'-bis-(1-pyridine-3-yl-ethylidene)-hydrazine] was assembled, and its morphology was found to undergo a microrod-to-nanosphere transformation with temperature variation. Core-shell Au@Pd functional nanoparticles (NPs) were successfully encapsulated in the center of the monodisperse nanospheres, and Pt NPs were well-dispersed and fully immobilized on the surface of Au@Pd@1Co to build the Pt/Au@Pd@1Co composites, which exhibited NPs catalytic activity for the reverse water gas shift reaction. The core-shell Au@Pd NPs in MOF significantly enchanced the CO selectivity of the catalyst, and the Pt NP loading on the surface of the nanosphere afforded a desirable CO2 conversion.
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Affiliation(s)
- Xi Zhao
- State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center , East China University of Science and Technology , Shanghai 200237 , China
| | - Haitao Xu
- State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center , East China University of Science and Technology , Shanghai 200237 , China
| | - XiaoXiao Wang
- State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center , East China University of Science and Technology , Shanghai 200237 , China
| | - Zhizhong Zheng
- State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center , East China University of Science and Technology , Shanghai 200237 , China
| | - Zhenliang Xu
- State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center , East China University of Science and Technology , Shanghai 200237 , China
| | - Jianping Ge
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , China
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26
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Abdel-Mageed AM, Kučerová G, Bansmann J, Behm RJ. Active Au Species During the Low-Temperature Water Gas Shift Reaction on Au/CeO2: A Time-Resolved Operando XAS and DRIFTS Study. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01563] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ali M. Abdel-Mageed
- Institute of Surface Chemistry
and Catalysis, Ulm University, Albert-Einstein-Allee 47, D-89081 Ulm, Germany
| | - Gabriela Kučerová
- Institute of Surface Chemistry
and Catalysis, Ulm University, Albert-Einstein-Allee 47, D-89081 Ulm, Germany
| | - Joachim Bansmann
- Institute of Surface Chemistry
and Catalysis, Ulm University, Albert-Einstein-Allee 47, D-89081 Ulm, Germany
| | - R. Jürgen Behm
- Institute of Surface Chemistry
and Catalysis, Ulm University, Albert-Einstein-Allee 47, D-89081 Ulm, Germany
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27
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Luo Y, Chen Z, Zhang J, Tang Y, Xu Z, Tang D. Theoretical insights into ω-alkynylfuran cycloisomerisation catalyzed by Au/CeO2(111): the role of the CeO2(111) support. RSC Adv 2017. [DOI: 10.1039/c6ra27207j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
ω-Alkynylfuran cycloisomerisation on CeO2(111)-supported Au clusters with different sizes was explored to unveil the role of the CeO2(111) support, including charge transfer effects and interactions.
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Affiliation(s)
- Yafei Luo
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P. R. China
| | - Zhongzhu Chen
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P. R. China
| | - Jin Zhang
- Chongqing Key Laboratory of Environmental Materials and Remediation Technologies
- Research Institute for New Materials Technology
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P. R. China
| | - Ying Tang
- Chongqing Key Laboratory of Environmental Materials and Remediation Technologies
- Research Institute for New Materials Technology
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P. R. China
| | - Zhigang Xu
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P. R. China
| | - Dianyong Tang
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P. R. China
- Chongqing Key Laboratory of Environmental Materials and Remediation Technologies
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28
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Morgan K, Maguire N, Fushimi R, Gleaves JT, Goguet A, Harold MP, Kondratenko EV, Menon U, Schuurman Y, Yablonsky GS. Forty years of temporal analysis of products. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00678k] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A detailed understanding of reaction mechanisms and kinetics is required in order to develop and optimize catalysts and catalytic processes. Temporal analysis of products (TAP) is an instrument capable of providing such understanding.
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Affiliation(s)
- K. Morgan
- School of Chemistry and Chemical Engineering
- Queen's University Belfast
- Belfast BT9 5AG
- UK
| | - N. Maguire
- School of Chemistry and Chemical Engineering
- Queen's University Belfast
- Belfast BT9 5AG
- UK
| | | | - J. T. Gleaves
- Department of Energy, Environmental and Chemical Engineering
- Washington University
- St Louis
- USA
| | - A. Goguet
- School of Chemistry and Chemical Engineering
- Queen's University Belfast
- Belfast BT9 5AG
- UK
| | - M. P. Harold
- Department of Chemical and Biomolecular Engineering
- University of Houston
- Houston
- USA
| | - E. V. Kondratenko
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- Rostock
- Germany
| | - U. Menon
- Department of Chemical and Biomolecular Engineering
- University of Houston
- Houston
- USA
| | - Y. Schuurman
- IRCELYON
- Université Claude Bernard Lyon 1
- Villeurbanne Cédex
- France
| | - G. S. Yablonsky
- Parks College of Engineering, Aviation and Technology
- Saint Louis University
- Saint Louis
- USA
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29
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Li W, Ge Q, Ma X, Chen Y, Zhu M, Xu H, Jin R. Mild activation of CeO2-supported gold nanoclusters and insight into the catalytic behavior in CO oxidation. NANOSCALE 2016; 8:2378-85. [PMID: 26750474 DOI: 10.1039/c5nr07498c] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We report a new activation method and insight into the catalytic behavior of a CeO2-supported, atomically precise Au144(SR)60 nanocluster catalyst (where thiolate -SR = -SCH2CH2Ph) for CO oxidation. An important finding is that the activation of the catalyst is closely related to the production of active oxygen species on CeO2, rather than ligand removal of the Au144(SR)60 clusters. A mild O2 pretreatment (at 80 °C) can activate the catalyst, and the addition of reductive gases (CO or H2) can enhance the activation effects of O2 pretreatment via a redox cycle in which CO could reduce the surface of CeO2 to produce oxygen vacancies-which then adsorb and activate O2 to produce more active oxygen species. The CO/O2 pulse experiments confirm that CO is adsorbed on the cluster catalyst even with ligands on, and active oxygen species present on the surface of the pretreated catalyst reacts with CO pulses to generate CO2. The Au144(SR)60/CeO2 exhibits high CO oxidation activity at 80 °C without the removal of thiolate ligands. The surface lattice-oxygen of the support CeO2 possibly participates in the oxidation of CO over the Au144(SR)60/CeO2 catalyst.
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Affiliation(s)
- Weili Li
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. and University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qingjie Ge
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Xiangang Ma
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Yuxiang Chen
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
| | - Manzhou Zhu
- Department of Chemistry, Anhui University, Hefei 230026, China
| | - Hengyong Xu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Rongchao Jin
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
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30
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Competition of CO and H2 for Active Oxygen Species during the Preferential CO Oxidation (PROX) on Au/TiO2 Catalysts. Catalysts 2016. [DOI: 10.3390/catal6020021] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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31
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Morfin F, Ait-Chaou A, Lomello M, Rousset JL. Influence of the partner oxide on the catalytic properties of Au/Ce x Zr 1 − x highly loaded gold catalysts. J Catal 2015. [DOI: 10.1016/j.jcat.2015.08.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Carrasquillo-Flores R, Ro I, Kumbhalkar MD, Burt S, Carrero CA, Alba-Rubio AC, Miller JT, Hermans I, Huber GW, Dumesic JA. Reverse Water–Gas Shift on Interfacial Sites Formed by Deposition of Oxidized Molybdenum Moieties onto Gold Nanoparticles. J Am Chem Soc 2015. [DOI: 10.1021/jacs.5b05945] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ronald Carrasquillo-Flores
- Department
of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Insoo Ro
- Department
of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Mrunmayi D. Kumbhalkar
- Department
of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Samuel Burt
- Department
of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
- Department
of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Carlos A. Carrero
- Department
of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Ana C. Alba-Rubio
- Department
of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Jeffrey T. Miller
- Chemical
Science and Engineering, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Ive Hermans
- Department
of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
- Department
of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - George W. Huber
- Department
of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - James A. Dumesic
- Department
of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
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