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  The Electrophilicity of Surface Carbon Species in the Redox Reactions of CuO‐CeO2 Catalysts

Kang, L., Wang, B., Güntner, A. T., Xu, S., Wan, X., Liu, Y., et al. (2021). The Electrophilicity of Surface Carbon Species in the Redox Reactions of CuO‐CeO2 Catalysts. Angewandte Chemie. doi:10.1002/ange.202102570.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0008-5618-D Version Permalink: https://hdl.handle.net/21.11116/0000-0008-7CF3-B
Genre: Journal Article

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 Creators:
Kang, Liqun1, Author
Wang, Bolun1, Author
Güntner, Andreas T.2, Author
Xu, Siyuan3, Author
Wan, Xuhao3, Author
Liu, Yiyun1, Author
Marlow, Sushila1, Author
Ren, Yifei1, Author
Gianolio, Diego4, Author
Tang, Chiu C.4, Author
Murzin, Vadim5, Author
Asakura, Hiroyuki6, Author
He, Qian7, Author
Guan, Shaoliang8, Author
Velasco Vélez, Juan9, Author           
Pratsinis, Sotiris E.2, Author
Guo, Yuzheng3, Author
Wang, Feng Ryan1, Author
Affiliations:
1Department of Chemical Engineering, University College London, London, WC1E 7JE UK, ou_persistent22              
2Particle Technology Laboratory, Institute of Process Engineering, Department of Mechanical and Process Engineering, ETH Zürich, 8092 Zürich, Switzerland, ou_persistent22              
3School of Electrical Engineering and Automation, Wuhan University, Wuhan, China, ou_persistent22              
4Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE UK, ou_persistent22              
5Deutsches Elektronen Synchrotron DESY, 22607 Hamburg, Germany, ou_persistent22              
6Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 6158510 Japan, ou_persistent22              
7Department of Materials Science and Engineering, National University of Singapore, Singapore, 117575 Singapore, ou_persistent22              
8HarwellXPS—The EPSRC National Facility for Photoelectron Spectroscopy, Research Complex at Harwell (RCaH), Didcot, OX11 0FA UK, ou_persistent22              
9Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              

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 Abstract: Electronic metal–support interactions (EMSI) describe the electron flow between metal sites and a metal oxide support. It is generally used to follow the mechanism of redox reactions. In this study of CuO‐CeO2 redox, an additional flow of electrons from metallic Cu to surface carbon species is observed via a combination of operando X‐ray absorption spectroscopy, synchrotron X‐ray powder diffraction, near ambient pressure near edge X‐ray absorption fine structure spectroscopy, and diffuse reflectance infrared Fourier transform spectroscopy. An electronic metal–support–carbon interaction (EMSCI) is proposed to explain the reaction pathway of CO oxidation. The EMSCI provides a complete picture of the mass and electron flow, which will help predict and improve the catalytic performance in the selective activation of CO2, carbonate, or carbonyl species in C1 chemistry.

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Language(s): eng - English
 Dates: 2021-02-192021-03-172021-04-08
 Publication Status: Published online
 Pages: 9
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1002/ange.202102570
 Degree: -

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Title: Angewandte Chemie
  Abbreviation : Angew. Chem.
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: 9 Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: ISSN: 0044-8249
CoNE: https://pure.mpg.de/cone/journals/resource/954926979058_1