Kang, L;
Wang, B;
Guntner, AT;
Xu, S;
Wan, X;
Liu, Y;
Marlow, S;
... Wang, FR; + view all
(2021)
The Electrophilicity of Surface Carbon Species in the Redox Reactions of CuO-CeO2 Catalysts.
Angewandte Chemie International Edition
, 60
(26)
pp. 14420-14428.
10.1002/anie.202102570.
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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.
| Type: | Article |
|---|---|
| Title: | The Electrophilicity of Surface Carbon Species in the Redox Reactions of CuO-CeO2 Catalysts |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/anie.202102570 |
| Publisher version: | http://dx.doi.org/10.1002/anie.202102570 |
| Language: | English |
| Additional information: | © 2021 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | Chemistry, CO oxidation, copper-ceria, electrophilicity, EMSI, surface chemistry |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10126297 |
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