1
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Prats H, Stamatakis M. Transition Metal Carbides as Supports for Catalytic Metal Particles: Recent Progress and Opportunities. J Phys Chem Lett 2024; 15:3450-3460. [PMID: 38512338 PMCID: PMC10983064 DOI: 10.1021/acs.jpclett.3c03214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 03/22/2024]
Abstract
Transition metal carbides (TMCs) constitute excellent alternatives to traditional oxide-based supports for small metal particles, leading to strong metal-support interactions, which drastically modify the catalytic properties of the supported metal atoms. Moreover, they possess extremely high melting points and good resistance to carbon deposition and sulfur poisoning, and the catalytic activities of some TMCs per se have been shown to be similar to those of Pt-group metals for a considerable number of reactions. Therefore, the use of TMCs as supports can give rise to bifunctional catalysts with multiple active sites. However, at present, only TiC and MoxC have been tested experimentally as supports for metal particles, and it is largely unclear which combinations may best catalyze which chemical reactions. In this Perspective, we review the most significant works on the use of TMCs as supports for catalytic applications, assess the current status of the field, and identify key advances being made and challenges, with an eye to the future.
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Affiliation(s)
- Hector Prats
- Department
of Chemical Engineering, University College
London, Roberts Building Torrington Place, London WC1E 7JE, U.K.
| | - Michail Stamatakis
- Department
of Chemistry, Inorganic Chemistry Lab, University
of Oxford, Oxford OX1 3QR, U.K.
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2
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Morales‐García Á, Viñes F, Gomes JRB, Illas F. Concepts, models, and methods in computational heterogeneous catalysis illustrated through
CO
2
conversion. WIRES COMPUTATIONAL MOLECULAR SCIENCE 2021. [DOI: 10.1002/wcms.1530] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ángel Morales‐García
- Departament de Ciència de Materials i Química Física & Institut de Química Teòrica i Computacional (IQTCUB) Universitat de Barcelona Barcelona Spain
| | - Francesc Viñes
- Departament de Ciència de Materials i Química Física & Institut de Química Teòrica i Computacional (IQTCUB) Universitat de Barcelona Barcelona Spain
| | - José R. B. Gomes
- CICECO—Aveiro Institute of Materials, Department of Chemistry University of Aveiro Aveiro Portugal
| | - Francesc Illas
- Departament de Ciència de Materials i Química Física & Institut de Química Teòrica i Computacional (IQTCUB) Universitat de Barcelona Barcelona Spain
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3
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Insights on alkylidene formation on Mo2C: A potential overlap between direct deoxygenation and olefin metathesis. J Catal 2021. [DOI: 10.1016/j.jcat.2020.11.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Zou XY, Mi L, Zuo ZJ, Gao ZH, Huang W. DFT study the water-gas shift reaction over Cu/α-MoC surface. J Mol Model 2020; 26:237. [PMID: 32812072 DOI: 10.1007/s00894-020-04502-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 08/03/2020] [Indexed: 11/26/2022]
Abstract
Cu-based catalysts have been widely used for water-gas shift reaction (WGS, CO + H2O → CO2 + H2), and α-MoC support also shows the good performance for the reaction. Therefore, WGS reaction is systematically studied over Cu/α-MoC by using density functional theory (DFT). DFT result shows the strong metal-support interaction between Cu and α-MoC(111) support. As a result, an extensive tensile strain is introduced in the Cu lattice due to α-MoC support, and Cu 3d band center shifts to Fermi level. However, the strong metal-support interaction does not lead to significant polarization of the Cu/α-MoC surface due to the less charge transfer from Mo to Cu. For the WGS reaction, small Cu particles on α-MoC(111) are likely to facilitate the reaction. At the interface of Cu-α-MoC(111), oxygen stabilizes the dissociated *H, which is benefit of H2O scission. Then, the activity increases compared with Cu(111) surface. In general, small Cu particles on α-MoC support also have good activity for WGS reaction compared with Au deposition on α-MoC. Graphical abstract.
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Affiliation(s)
- Xue-Yan Zou
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, China
| | - Le Mi
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, China
| | - Zhi-Jun Zuo
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, China.
| | - Zhi-Hua Gao
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, China
| | - Wei Huang
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, China.
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5
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Geng F, Bonita Y, Jain V, Magiera M, Rai N, Hicks JC. Bimetallic Ru–Mo Phosphide Catalysts for the Hydrogenation of CO2 to Methanol. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b06937] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Feiyang Geng
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Yolanda Bonita
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Varsha Jain
- Dave C. Swalm School of Chemical Engineering and Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Matthew Magiera
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Neeraj Rai
- Dave C. Swalm School of Chemical Engineering and Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Jason C. Hicks
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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6
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Wang F, Li T, Shi Y, Jiao H. Molybdenum carbide supported metal catalysts (Mn/MoxC; M = Co, Ni, Cu, Pd, Pt) – metal and surface dependent structure and stability. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00504e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The surface and metal-dependent morphologies and energies of molybdenum carbide supported metal catalysts (Mn/MoxC; M = Co, Ni, Cu, Pd, Pt) have been systematically investigated on the basis of periodic density functional theory computations.
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Affiliation(s)
- Fan Wang
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rosteock
- Germany
| | - Teng Li
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Yun Shi
- School of Chemistry & Chemical Engineering
- Linyi University
- Linyi 276000
- China
| | - Haijun Jiao
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rosteock
- Germany
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7
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Prats H, Gutiérrez RA, Piñero JJ, Viñes F, Bromley ST, Ramírez PJ, Rodriguez JA, Illas F. Room Temperature Methane Capture and Activation by Ni Clusters Supported on TiC(001): Effects of Metal–Carbide Interactions on the Cleavage of the C–H Bond. J Am Chem Soc 2019; 141:5303-5313. [DOI: 10.1021/jacs.8b13552] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hèctor Prats
- Departament de Ciència de Materials i Química Física & Institut de Quı́mica Teòrica i Computacional (IQTCUB), de la Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Ramón A. Gutiérrez
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, United States
- Facultad de Ciencias, Universidad Central de Venezuela, Caracas 1020-A, Venezuela
| | - Juan José Piñero
- Departament de Ciència de Materials i Química Física & Institut de Quı́mica Teòrica i Computacional (IQTCUB), de la Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Francesc Viñes
- Departament de Ciència de Materials i Química Física & Institut de Quı́mica Teòrica i Computacional (IQTCUB), de la Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Stefan T. Bromley
- Departament de Ciència de Materials i Química Física & Institut de Quı́mica Teòrica i Computacional (IQTCUB), de la Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
| | - Pedro J. Ramírez
- Facultad de Ciencias, Universidad Central de Venezuela, Caracas 1020-A, Venezuela
| | - José A. Rodriguez
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Francesc Illas
- Departament de Ciència de Materials i Química Física & Institut de Quı́mica Teòrica i Computacional (IQTCUB), de la Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
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8
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Krishnamurthy CB, Lori O, Elbaz L, Grinberg I. First-Principles Investigation of the Formation of Pt Nanorafts on a Mo 2C Support and Their Catalytic Activity for Oxygen Reduction Reaction. J Phys Chem Lett 2018; 9:2229-2234. [PMID: 29649872 DOI: 10.1021/acs.jpclett.8b00949] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We use first-principles calculations to study the formation of Pt nanorafts and their oxygen reduction reaction (ORR) catalytic activity on Mo2C. Due to the high Pt binding energy on C atoms, Pt forms sheet-like structures on the Mo2C surface instead of agglomerating into particles. We find that the disordered Mo2C surface carbon arrangement limits the Pt sheet growth, leading to the formation of 4-6 atom Pt nanorafts. The O-O repulsion between the O atoms on the Mo2C and O adsorbate enhances the ORR activity by weakening the O adsorption energy. We find a significant change from the usual scaling of the energies of the intermediates in the ORR pathway and a strong interaction between the nanoraft and water that lead to a high activity of the Pt nanorafts. Fundamentally, our work demonstrates that the activity of metal catalysts can be strongly affected by manipulation of the atomic arrangement of the supporting carbide surface.
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Affiliation(s)
| | - Oran Lori
- Department of Chemistry , Bar-Ilan University , Ramat Gan , Israel 52900
| | - Lior Elbaz
- Department of Chemistry , Bar-Ilan University , Ramat Gan , Israel 52900
| | - Ilya Grinberg
- Department of Chemistry , Bar-Ilan University , Ramat Gan , Israel 52900
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9
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Posada-Pérez S, Gutiérrez RA, Zuo Z, Ramírez PJ, Viñes F, Liu P, Illas F, Rodriguez JA. Highly active Au/δ-MoC and Au/β-Mo2C catalysts for the low-temperature water gas shift reaction: effects of the carbide metal/carbon ratio on the catalyst performance. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00639j] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water gas shift reaction catalyzed by Mo carbides surfaces and on Au supported thereon is studied by experiments and computational methods.
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Affiliation(s)
- Sergio Posada-Pérez
- Departament de Ciència de Materials i Química Física & Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Ramón A. Gutiérrez
- Facultad de Ciencias
- Universidad Central de Venezuela
- Caracas 1020-A
- Venezuela
| | - Zhijun Zuo
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province
- Taiyuan University of Technology
- Taiyuan 030024
- China
| | - Pedro J. Ramírez
- Facultad de Ciencias
- Universidad Central de Venezuela
- Caracas 1020-A
- Venezuela
| | - Francesc Viñes
- Departament de Ciència de Materials i Química Física & Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Ping Liu
- Chemistry Department
- Brookhaven National Laboratory
- NY 11973
- USA
| | - Francesc Illas
- Departament de Ciència de Materials i Química Física & Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
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10
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Posada-Pérez S, Ramírez PJ, Evans J, Viñes F, Liu P, Illas F, Rodriguez JA. Highly Active Au/δ-MoC and Cu/δ-MoC Catalysts for the Conversion of CO2: The Metal/C Ratio as a Key Factor Defining Activity, Selectivity, and Stability. J Am Chem Soc 2016; 138:8269-78. [DOI: 10.1021/jacs.6b04529] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Sergio Posada-Pérez
- Departament
de Química Física and Institut de Química Teòrica
i Computacional (IQTCUB), Universitat de Barcelona, c/Martí
i Franquès 1, 08028 Barcelona, Spain
| | - Pedro J. Ramírez
- Facultad
de Ciencias, Universidad Central de Venezuela, Caracas 1020-A, Venezuela
| | - Jaime Evans
- Facultad
de Ciencias, Universidad Central de Venezuela, Caracas 1020-A, Venezuela
| | - Francesc Viñes
- Departament
de Química Física and Institut de Química Teòrica
i Computacional (IQTCUB), Universitat de Barcelona, c/Martí
i Franquès 1, 08028 Barcelona, Spain
| | - Ping Liu
- Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Francesc Illas
- Departament
de Química Física and Institut de Química Teòrica
i Computacional (IQTCUB), Universitat de Barcelona, c/Martí
i Franquès 1, 08028 Barcelona, Spain
| | - José A. Rodriguez
- Chemistry
Department, Brookhaven National Laboratory, Upton, New York 11973, United States
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11
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He S, Shao ZJ, Shu Y, Shi Z, Cao XM, Gao Q, Hu P, Tang Y. Enhancing Metal-Support Interactions by Molybdenum Carbide: An Efficient Strategy toward the Chemoselective Hydrogenation of α,β-Unsaturated Aldehydes. Chemistry 2016; 22:5698-704. [DOI: 10.1002/chem.201600323] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Sina He
- Department of Chemistry; Jinan University; Guangzhou 510632 P. R. China
| | - Zheng-Jiang Shao
- Key Laboratory for Advanced Materials; Center for Computational Chemistry and Research Institute of Industrial Catalysis; East China University of Science & Technology; Shanghai 200237 P. R. China
| | - Yijin Shu
- Department of Chemistry; Jinan University; Guangzhou 510632 P. R. China
| | - Zhangping Shi
- Department of Chemistry; Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials; Laboratory of Advanced Materials and Collaborative Innovation Center of Chemistry for Energy Materials; Fudan University; Shanghai 200433 P. R. China
| | - Xiao-Ming Cao
- Key Laboratory for Advanced Materials; Center for Computational Chemistry and Research Institute of Industrial Catalysis; East China University of Science & Technology; Shanghai 200237 P. R. China
| | - Qingsheng Gao
- Department of Chemistry; Jinan University; Guangzhou 510632 P. R. China
| | - Peijun Hu
- Key Laboratory for Advanced Materials; Center for Computational Chemistry and Research Institute of Industrial Catalysis; East China University of Science & Technology; Shanghai 200237 P. R. China
| | - Yi Tang
- Department of Chemistry; Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials; Laboratory of Advanced Materials and Collaborative Innovation Center of Chemistry for Energy Materials; Fudan University; Shanghai 200433 P. R. China
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12
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He Y, Zhao P, Guo W, Yang Y, Huo CF, Li YW, Wen XD. Hägg carbide surfaces induced Pt morphological changes: a theoretical insight. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00764c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Comprehensive spin-polarized density functional theory (DFT) combined with ab initio molecular dynamic (AIMD) simulations have been performed to explore the structures, energies, and diffusion behavior of platinum on Fe5C2 surfaces with importance in Fischer–Tropsch (F–T) catalysis.
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Affiliation(s)
- Yurong He
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Peng Zhao
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Wenping Guo
- National Energy Center for Coal to Liquids
- Synfuels China Co., Ltd
- Beijing
- China
| | - Yong Yang
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Chun-Fang Huo
- National Energy Center for Coal to Liquids
- Synfuels China Co., Ltd
- Beijing
- China
| | - Yong-Wang Li
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Xiao-Dong Wen
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
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13
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An W, Xu F, Stacchiola D, Liu P. Potassium-Induced Effect on the Structure and Chemical Activity of the CuxO/Cu(1 1 1) (x≤ 2) Surface: A Combined Scanning Tunneling Microscopy and Density Functional Theory Study. ChemCatChem 2015. [DOI: 10.1002/cctc.201500719] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Wei An
- Chemistry Department; Brookhaven National Laboratory; Upton New York 11973 USA
- College of Chemistry and Chemical Engineering; Shanghai University of Engineering Science; Shanghai 201620 P.R. China
| | - Fang Xu
- Chemistry Department; Stony Brook University; Stony Brook New York 11794 USA
| | - Dario Stacchiola
- Chemistry Department; Brookhaven National Laboratory; Upton New York 11973 USA
| | - Ping Liu
- Chemistry Department; Brookhaven National Laboratory; Upton New York 11973 USA
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14
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Posada-Pérez S, Viñes F, Rodríguez JA, Illas F. Structure and electronic properties of Cu nanoclusters supported on Mo2C(001) and MoC(001) surfaces. J Chem Phys 2015; 143:114704. [DOI: 10.1063/1.4930538] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Affiliation(s)
- Sergio Posada-Pérez
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, c/ Martí i Franquès 1, 08028 Barcelona, Spain
| | - Francesc Viñes
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, c/ Martí i Franquès 1, 08028 Barcelona, Spain
| | - José A. Rodríguez
- Chemistry Department, Brookhaven National Laboratory, Bldg. 555, Upton, New York 11973, USA
| | - Francesc Illas
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, c/ Martí i Franquès 1, 08028 Barcelona, Spain
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15
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Martínez-Suárez L, Siemer N, Frenzel J, Marx D. Reaction Network of Methanol Synthesis over Cu/ZnO Nanocatalysts. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00442] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Luis Martínez-Suárez
- Lehrstuhl für Theoretische Chemie, Ruhr−Universität Bochum, 44780 Bochum, Germany
| | - Niklas Siemer
- Lehrstuhl für Theoretische Chemie, Ruhr−Universität Bochum, 44780 Bochum, Germany
| | - Johannes Frenzel
- Lehrstuhl für Theoretische Chemie, Ruhr−Universität Bochum, 44780 Bochum, Germany
| | - Dominik Marx
- Lehrstuhl für Theoretische Chemie, Ruhr−Universität Bochum, 44780 Bochum, Germany
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16
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Posada-Pérez S, dos Santos Politi JR, Viñes F, Illas F. Methane capture at room temperature: adsorption on cubic δ-MoC and orthorhombic β-Mo2C molybdenum carbide (001) surfaces. RSC Adv 2015. [DOI: 10.1039/c4ra17225f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
By means of an surrealistic picture, one can see the most prominent result in this paper; the capacity of δ-MoC(001) surface to sequester methane molecule at room temperature.
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Affiliation(s)
- Sergio Posada-Pérez
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | | | - Francesc Viñes
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Francesc Illas
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
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17
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Rodriguez JA, Ramírez PJ, Asara GG, Viñes F, Evans J, Liu P, Ricart JM, Illas F. Charge Polarization at a Au-TiC Interface and the Generation of Highly Active and Selective Catalysts for the Low-Temperature Water-Gas Shift Reaction. Angew Chem Int Ed Engl 2014; 53:11270-4. [DOI: 10.1002/anie.201407208] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Indexed: 11/07/2022]
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18
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Rodriguez JA, Ramírez PJ, Asara GG, Viñes F, Evans J, Liu P, Ricart JM, Illas F. Charge Polarization at a Au-TiC Interface and the Generation of Highly Active and Selective Catalysts for the Low-Temperature Water-Gas Shift Reaction. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407208] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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19
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Rodriguez JA, Senanayake SD, Stacchiola D, Liu P, Hrbek J. The activation of gold and the water-gas shift reaction: insights from studies with model catalysts. Acc Chem Res 2014; 47:773-82. [PMID: 24191672 DOI: 10.1021/ar400182c] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The activation of gold in catalytic reactions has been the subject of intensive research that has led to the transformation of one of the least chemically reactive elements to a catalyst with excellent activity and selectivity. Scientists have performed numerous systematic experimental and theoretical studies using model systems, which have explained the role of Au in chemical reactions with progressively increasing degrees of structural and chemical complexity. We present an overview of recent studies of model Au(111), CeOx/Au(111), and Au/CeOx/TiO2(110) surfaces that use Au in different structural configurations specifically for the water-gas shift reaction (WGS, CO + H2O → CO2 + H2), an important industrial process for the purification of CO. We demonstrate the significance of key structural components of the Au-based supported catalysts such as the metal-oxide interface (Au-Ox) toward the WGS catalytic activity, a "structure-activity" relationship. In the WGS reaction, Au(111) or Au nanoparticles have poor catalytic performance due to their inability to activate one of the most important steps of the reaction, the breaking of O-H bonds in the dissociation of water (H2O → OH + H). The relatively large energetic barrier can be overcome by using O on Au(111) to facilitate the formation of OH at low temperatures, with eventual CO2 and H2 production upon reaction between CO and the adsorbed OH. However, the inability to replace the reacted O prevents a sustainable catalytic process from occurring on Au(111). The addition of a small concentration of CeOx nanoparticles on top of the Au(111) surface facilitates this rate-determining step and easily continues the catalytic cycle in the production of H2. We have discovered that CeOx nanoparticles in contact with Au(111) are rich in Ce(3+). They also have a distinct metal-oxide interface, which sustains excellent activity for the WGS reaction via the formation of a unique carboxylate intermediate, making CeOx/Au(111) more active than Cu/ZnO(0001̅), Cu(100), and Cu(111) which are the typical catalysts for this reaction. Taking this knowledge one step further, bringing these components (oxide and metal nanoparticles) together over a second oxide in Au/CeOx/TiO2 produces a system with unique morphological and electronic properties. The result is a superior catalyst for the WGS reaction, both as a model system (Au/CeOx/TiO2(110)) and as powder material (Au/CeOx/TiO2(anatase)) optimized directly in a series of systematic investigations.
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Affiliation(s)
- José A. Rodriguez
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Sanjaya D. Senanayake
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Dario Stacchiola
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Ping Liu
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Jan Hrbek
- Department of Chemistry, Brookhaven National Laboratory, Upton, New York 11973, United States
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Posada-Pérez S, Viñes F, Ramirez PJ, Vidal AB, Rodriguez JA, Illas F. The bending machine: CO2 activation and hydrogenation on δ-MoC(001) and β-Mo2C(001) surfaces. Phys Chem Chem Phys 2014; 16:14912-21. [DOI: 10.1039/c4cp01943a] [Citation(s) in RCA: 143] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The adsorption and activation of a CO2 molecule on cubic δ-MoC(001) and orthorhombic β-Mo2C(001) surfaces have been investigated by means of periodic density functional theory based calculations using the Perdew–Burke–Ernzerhof exchange–correlation functional and explicitly accounting for (or neglecting) the dispersive force term description as proposed by Grimme.
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Affiliation(s)
- Sergio Posada-Pérez
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona, Spain
| | - Francesc Viñes
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona, Spain
| | - Pedro J. Ramirez
- Facultad de Ciencias
- Universidad Central de Venezuela
- Caracas 1020-A, Venezuela
- Chemistry Department
- Brookhaven National Laboratory
| | - Alba B. Vidal
- Chemistry Department
- Brookhaven National Laboratory
- Upton, USA
- Centro de Química
- Instituto Venezolano de Investigaciones Cientificas (IVIC)
| | | | - Francesc Illas
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona, Spain
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21
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Rodriguez JA, Evans J, Feria L, Vidal AB, Liu P, Nakamura K, Illas F. CO2 hydrogenation on Au/TiC, Cu/TiC, and Ni/TiC catalysts: Production of CO, methanol, and methane. J Catal 2013. [DOI: 10.1016/j.jcat.2013.07.023] [Citation(s) in RCA: 146] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Lim DH, Wilcox J. Heterogeneous mercury oxidation on au(111) from first principles. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:8515-8522. [PMID: 23805868 DOI: 10.1021/es400876e] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Density functional theory (DFT) studies of mercury oxidation on Au(111) are conducted to determine the potential Hg oxidation mechanisms taking place on catalytic gold surfaces by using the Perdew and Wang approximation (PW91) described by a generalized gradient approximation (GGA). The Hg oxidation was examined via a Langmuir-Hinshelwood mechanism where each Hg(0) and Cl2 (or HCl) species is separately adsorbed on the gold surface and the bimolecular reaction occurs through the formation of bound HgCl and HgCl2. For this, the Climbing Image-Nudged Elastic Band (CI-NEB) method has been employed to calculate the activation energies of HgCl and HgCl2 formation pathways. In the three-step Hg oxidation mechanism (Hg → HgCl → HgCl2), the second Cl attachment step is endothermic which is the reaction rate-limiting step, while the first Cl attachment step is exothermic. This observation implies that Hg oxidation prefers a pathway in which HgCl and HgCl2 are formed, rather than a pathway directly oxidizing Hg to HgCl2. In the presence of H atoms due to HCl dissociation on the Au surface, the H atoms lower the activation energy for Hg oxidation by consuming the electron charge of Au atoms, thereby weakening the strength of interaction between Cl and the Au surface and lowering an energy required to detach Cl from the Au surface. This mechanism is in the absence of site competition on the Au surface. In addition, details of the electronic properties of these systems are discussed.
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Affiliation(s)
- Dong-Hee Lim
- Fuel Cell Research Center, Korea Institute of Science and Technology (KIST) , Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea
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23
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Wang G, Schaidle JA, Katz MB, Li Y, Pan X, Thompson LT. Alumina supported Pt–Mo2C catalysts for the water–gas shift reaction. J Catal 2013. [DOI: 10.1016/j.jcat.2013.04.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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24
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Lamiel-Garcia O, Bromley ST, Illas F. Low-energy nanoscale clusters of (TiC) n n = 6, 12: a structural and energetic comparison with MgO. Theor Chem Acc 2013. [DOI: 10.1007/s00214-012-1312-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Liu X, Wang X, Wang Q, Andrews L. Spontaneous sulfur dioxide activation by Group V metal (V, Nb, Ta) atoms in excess argon at cryogenic temperatures. Phys Chem Chem Phys 2013; 15:9823-32. [DOI: 10.1039/c3cp51137e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Politi JRDS, Viñes F, Rodriguez JA, Illas F. Atomic and electronic structure of molybdenum carbide phases: bulk and low Miller-index surfaces. Phys Chem Chem Phys 2013; 15:12617-25. [DOI: 10.1039/c3cp51389k] [Citation(s) in RCA: 165] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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27
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Vidal AB, Feria L, Evans J, Takahashi Y, Liu P, Nakamura K, Illas F, Rodriguez JA. CO2 Activation and Methanol Synthesis on Novel Au/TiC and Cu/TiC Catalysts. J Phys Chem Lett 2012; 3:2275-80. [PMID: 26295783 DOI: 10.1021/jz300989e] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Small Cu and Au particles in contact with a TiC(001) surface undergo a charge polarization that makes them very active for CO2 activation and the catalytic synthesis of methanol. The binding energy of CO2 on these systems is in the range of 0.6 to 1.1 eV, much larger than those observed on surfaces or nanoparticles of Cu and Au. Thus, in spite of the poor CO2 hydrogenation performance of Cu(111) and Au(111), the Cu/TiC(001) and Au/TiC(001) systems display a catalytic activity for methanol synthesis substantially higher than that of conventional Cu/ZnO catalysts. The turnover frequencies for methanol production on Cu/TiC(001) are 170-500 times much larger than on Cu(111). The present study moves away from the typical approach of using metal/oxide catalysts for the synthesis of methanol via CO2 hydrogenation. This work shows that metal carbides can be excellent supports for enhancing the ability of noble metals to bond and activate CO2.
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Affiliation(s)
- Alba B Vidal
- †Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, United States
- ‡Centro de Química, Instituto Venezolano de Investigaciones Cientificas (IVIC), Apartado 21827, Caracas 1020-A, Venezuela
| | | | - Jaime Evans
- ∥Facultad de Ciencias, Universidad Central de Venezuela, Apartado 20513, Caracas 1020-A, Venezuela
| | - Yoshiro Takahashi
- ⊥Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Ping Liu
- †Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Kenichi Nakamura
- ⊥Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | | | - José A Rodriguez
- †Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, United States
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Lim DH, Aboud S, Wilcox J. Investigation of adsorption behavior of mercury on Au(111) from first principles. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:7260-7266. [PMID: 22631210 DOI: 10.1021/es300046d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The structural and electronic properties of Hg, SO(2), HgS, and HgO adsorption on Au(111) surfaces have been determined using density functional theory with the generalized gradient approximation. The adsorption strength of Hg on Au(111) increases by a factor of 1.3 (from -9.7 to -12.6 kcal/mol) when the number of surface vacancies increases from 0 to 3; however, the adsorption energy decreases with more than three vacancies. In the case of SO(2) adsorption on Au(111), the Au surface atoms are better able to stabilize the SO(2) molecule when they are highly undercoordinated. The SO(2) adsorption stability is enhanced from -0.8 to -9.3 kcal/mol by increasing the number of vacancies from 0 to 14, with the lowest adsorption energy of -10.2 kcal/mol at 8 Au vacancies. Atomic sulfur and oxygen precovered-Au(111) surfaces lower the Hg stability when Hg adsorbs on the top of S and O atoms. However, a cooperative effect between adjacent Hg atoms is observed as the number of S and Hg atoms increases on the perfect Au(111) surface, resulting in an increase in the magnitude of Hg adsorption. Details of the electronic structure properties of the Hg-Au systems are also discussed.
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Affiliation(s)
- Dong-Hee Lim
- Department of Energy Resources Engineering, Stanford University , 367 Panama Street, Green Earth Sciences, Stanford, California 94305-2220, United States
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29
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Rodriguez JA, Illas F. Activation of noble metals on metal-carbide surfaces: novel catalysts for CO oxidation, desulfurization and hydrogenation reactions. Phys Chem Chem Phys 2012; 14:427-38. [DOI: 10.1039/c1cp22738f] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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30
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Koczkur KM, Hamed EM, Houmam A. Sulfur multilayer formation on Au(111): new insights from the study of hexamethyldisilathiane. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:12270-12274. [PMID: 21916512 DOI: 10.1021/la202591j] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Hexamethyldisilathiane was successfully used as a new precursor for the formation of S layers on Au and to study their interaction. Characterization of the S modified gold surface was done by X-ray photoelectron spectroscopy (XPS), cyclic voltammetry (CV), and scanning tunneling microscopy (STM). Key findings include the direct observation by STM of (i) coexistence of different phases, (ii) multiple sulfur layers formation, (ii) formation of rectangular structures not only on the adlayer but also on the top layer, and (iv) rectangular structure mobility on different layers. These results provide clear evidence regarding the adsorbate nature of the rectangular structures, solving a highly debated question.
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Affiliation(s)
- Kallum M Koczkur
- Department of Chemistry, Electrochemical Technology Centre, University of Guelph, Guelph, Ontario N1G 2W1, Canada
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31
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Rodriguez JA, Liu P, Takahashi Y, Viñes F, Feria L, Florez E, Nakamura K, Illas F. Novel Au–TiC catalysts for CO oxidation and desulfurization processes. Catal Today 2011. [DOI: 10.1016/j.cattod.2010.04.051] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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32
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Affiliation(s)
- Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
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33
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Feria L, Rodriguez JA, Jirsak T, Illas F. Interaction of SO2 with Cu/TiC(001) and Au/TiC(001): Toward a new family of DeSOx catalysts. J Catal 2011. [DOI: 10.1016/j.jcat.2011.02.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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34
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Florez E, Gomez T, Rodriguez JA, Illas F. On the dissociation of molecular hydrogen by Au supported on transition metal carbides: choice of the most active support. Phys Chem Chem Phys 2011; 13:6865-71. [DOI: 10.1039/c0cp02882g] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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35
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Florez E, Gomez T, Liu P, Rodriguez JA, Illas F. Hydrogenation Reactions on Au/TiC(001): Effects of AuC Interactions on the Dissociation of H2. ChemCatChem 2010. [DOI: 10.1002/cctc.201000190] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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36
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Rodriguez JA, Liu P, Takahashi Y, Nakamura K, Viñes F, Illas F. Desulfurization Reactions on Surfaces of Metal Carbides: Photoemission and Density–Functional Studies. Top Catal 2010. [DOI: 10.1007/s11244-010-9452-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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37
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Rodríguez JA, Feria L, Jirsak T, Takahashi Y, Nakamura K, Illas F. Role of Au−C Interactions on the Catalytic Activity of Au Nanoparticles Supported on TiC(001) toward Molecular Oxygen Dissociation. J Am Chem Soc 2010; 132:3177-86. [DOI: 10.1021/ja910146g] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- José A. Rodríguez
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Spain, and Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Leticia Feria
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Spain, and Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Tomas Jirsak
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Spain, and Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Yoshiro Takahashi
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Spain, and Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Kenichi Nakamura
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Spain, and Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan
| | - Francesc Illas
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Spain, and Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan
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38
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Roldán A, Ricart JM, Illas F, Pacchioni G. O2 adsorption and dissociation on neutral, positively and negatively charged Aun (n = 5–79) clusters. Phys Chem Chem Phys 2010; 12:10723-9. [DOI: 10.1039/c004110f] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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39
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Florez E, Viñes F, Rodriguez JA, Illas F. Adsorption and diffusion of Au atoms on the (001) surface of Ti, Zr, Hf, V, Nb, Ta, and Mo carbides. J Chem Phys 2009; 130:244706. [DOI: 10.1063/1.3158620] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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40
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Rodriguez JA, Liu P, Takahashi Y, Nakamura K, Viñes F, Illas F. Desulfurization of Thiophene on Au/TiC(001): Au−C Interactions and Charge Polarization. J Am Chem Soc 2009; 131:8595-602. [DOI: 10.1021/ja901522a] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- José A. Rodriguez
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan, and Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Spain
| | - Ping Liu
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan, and Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Spain
| | - Yoshiro Takahashi
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan, and Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Spain
| | - Kenichi Nakamura
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan, and Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Spain
| | - Francesc Viñes
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan, and Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Spain
| | - Francesc Illas
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan, and Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, C/Martí i Franquès 1, 08028 Barcelona, Spain
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41
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Influence of the exchange–correlation potential on the description of the molecular mechanism of oxygen dissociation by Au nanoparticles. Theor Chem Acc 2009. [DOI: 10.1007/s00214-009-0540-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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42
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Roldán A, González S, Ricart JM, Illas F. Critical Size for O2Dissociation by Au Nanoparticles. Chemphyschem 2009; 10:348-51. [DOI: 10.1002/cphc.200800702] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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