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Microfabricated electrodes unravel the role of interfaces in multicomponent copper-based CO(2) reduction catalysts
The emergence of synergistic effects in multicomponent catalysts can result in breakthrough advances in the electrochemical reduction of carbon dioxide. Copper-indium catalysts show high performance toward carbon monoxide production but also extensive structural and compositional changes under opera...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5902587/ https://www.ncbi.nlm.nih.gov/pubmed/29662097 http://dx.doi.org/10.1038/s41467-018-03980-9 |
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author | Larrazábal, Gastón O. Shinagawa, Tatsuya Martín, Antonio J. Pérez-Ramírez, Javier |
author_facet | Larrazábal, Gastón O. Shinagawa, Tatsuya Martín, Antonio J. Pérez-Ramírez, Javier |
author_sort | Larrazábal, Gastón O. |
collection | PubMed |
description | The emergence of synergistic effects in multicomponent catalysts can result in breakthrough advances in the electrochemical reduction of carbon dioxide. Copper-indium catalysts show high performance toward carbon monoxide production but also extensive structural and compositional changes under operation. The origin of the synergistic effect and the nature of the active phase are not well understood, thus hindering optimization efforts. Here we develop a platform that sheds light into these aspects, based on microfabricated model electrodes that are evaluated under conventional experimental conditions. The relationship among the electrode performance, geometry and composition associates the high carbon monoxide evolution activity of copper-indium catalysts to indium-poor bimetallic phases, which are formed upon exposure to reaction conditions in the vicinity of the interfaces between copper oxide and an indium source. The exploratory extension of this approach to the copper-tin system demonstrates its versatility and potential for the study of complex multicomponent electrocatalysts. |
format | Online Article Text |
id | pubmed-5902587 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-59025872018-04-20 Microfabricated electrodes unravel the role of interfaces in multicomponent copper-based CO(2) reduction catalysts Larrazábal, Gastón O. Shinagawa, Tatsuya Martín, Antonio J. Pérez-Ramírez, Javier Nat Commun Article The emergence of synergistic effects in multicomponent catalysts can result in breakthrough advances in the electrochemical reduction of carbon dioxide. Copper-indium catalysts show high performance toward carbon monoxide production but also extensive structural and compositional changes under operation. The origin of the synergistic effect and the nature of the active phase are not well understood, thus hindering optimization efforts. Here we develop a platform that sheds light into these aspects, based on microfabricated model electrodes that are evaluated under conventional experimental conditions. The relationship among the electrode performance, geometry and composition associates the high carbon monoxide evolution activity of copper-indium catalysts to indium-poor bimetallic phases, which are formed upon exposure to reaction conditions in the vicinity of the interfaces between copper oxide and an indium source. The exploratory extension of this approach to the copper-tin system demonstrates its versatility and potential for the study of complex multicomponent electrocatalysts. Nature Publishing Group UK 2018-04-16 /pmc/articles/PMC5902587/ /pubmed/29662097 http://dx.doi.org/10.1038/s41467-018-03980-9 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Larrazábal, Gastón O. Shinagawa, Tatsuya Martín, Antonio J. Pérez-Ramírez, Javier Microfabricated electrodes unravel the role of interfaces in multicomponent copper-based CO(2) reduction catalysts |
title | Microfabricated electrodes unravel the role of interfaces in multicomponent copper-based CO(2) reduction catalysts |
title_full | Microfabricated electrodes unravel the role of interfaces in multicomponent copper-based CO(2) reduction catalysts |
title_fullStr | Microfabricated electrodes unravel the role of interfaces in multicomponent copper-based CO(2) reduction catalysts |
title_full_unstemmed | Microfabricated electrodes unravel the role of interfaces in multicomponent copper-based CO(2) reduction catalysts |
title_short | Microfabricated electrodes unravel the role of interfaces in multicomponent copper-based CO(2) reduction catalysts |
title_sort | microfabricated electrodes unravel the role of interfaces in multicomponent copper-based co(2) reduction catalysts |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5902587/ https://www.ncbi.nlm.nih.gov/pubmed/29662097 http://dx.doi.org/10.1038/s41467-018-03980-9 |
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