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A Bifunctional Electrocatalyst for Oxygen Evolution and Oxygen Reduction Reactions in Water
Oxygen reduction and water oxidation are two key processes in fuel cell applications. The oxidation of water to dioxygen is a 4 H(+)/4 e(−) process, while oxygen can be fully reduced to water by a 4 e(−)/4 H(+) process or partially reduced by fewer electrons to reactive oxygen species such as H(2)O(...
Autores principales: | , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4949540/ https://www.ncbi.nlm.nih.gov/pubmed/27478281 http://dx.doi.org/10.1002/ange.201508404 |
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author | Schöfberger, Wolfgang Faschinger, Felix Chattopadhyay, Samir Bhakta, Snehadri Mondal, Biswajit Elemans, Johannes A. A. W. Müllegger, Stefan Tebi, Stefano Koch, Reinhold Klappenberger, Florian Paszkiewicz, Mateusz Barth, Johannes V. Rauls, Eva Aldahhak, Hazem Schmidt, Wolf Gero Dey, Abhishek |
author_facet | Schöfberger, Wolfgang Faschinger, Felix Chattopadhyay, Samir Bhakta, Snehadri Mondal, Biswajit Elemans, Johannes A. A. W. Müllegger, Stefan Tebi, Stefano Koch, Reinhold Klappenberger, Florian Paszkiewicz, Mateusz Barth, Johannes V. Rauls, Eva Aldahhak, Hazem Schmidt, Wolf Gero Dey, Abhishek |
author_sort | Schöfberger, Wolfgang |
collection | PubMed |
description | Oxygen reduction and water oxidation are two key processes in fuel cell applications. The oxidation of water to dioxygen is a 4 H(+)/4 e(−) process, while oxygen can be fully reduced to water by a 4 e(−)/4 H(+) process or partially reduced by fewer electrons to reactive oxygen species such as H(2)O(2) and O(2) (−). We demonstrate that a novel manganese corrole complex behaves as a bifunctional catalyst for both the electrocatalytic generation of dioxygen as well as the reduction of dioxygen in aqueous media. Furthermore, our combined kinetic, spectroscopic, and electrochemical study of manganese corroles adsorbed on different electrode materials (down to a submolecular level) reveals mechanistic details of the oxygen evolution and reduction processes. |
format | Online Article Text |
id | pubmed-4949540 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-49495402016-07-28 A Bifunctional Electrocatalyst for Oxygen Evolution and Oxygen Reduction Reactions in Water Schöfberger, Wolfgang Faschinger, Felix Chattopadhyay, Samir Bhakta, Snehadri Mondal, Biswajit Elemans, Johannes A. A. W. Müllegger, Stefan Tebi, Stefano Koch, Reinhold Klappenberger, Florian Paszkiewicz, Mateusz Barth, Johannes V. Rauls, Eva Aldahhak, Hazem Schmidt, Wolf Gero Dey, Abhishek Angew Chem Weinheim Bergstr Ger Zuschriften Oxygen reduction and water oxidation are two key processes in fuel cell applications. The oxidation of water to dioxygen is a 4 H(+)/4 e(−) process, while oxygen can be fully reduced to water by a 4 e(−)/4 H(+) process or partially reduced by fewer electrons to reactive oxygen species such as H(2)O(2) and O(2) (−). We demonstrate that a novel manganese corrole complex behaves as a bifunctional catalyst for both the electrocatalytic generation of dioxygen as well as the reduction of dioxygen in aqueous media. Furthermore, our combined kinetic, spectroscopic, and electrochemical study of manganese corroles adsorbed on different electrode materials (down to a submolecular level) reveals mechanistic details of the oxygen evolution and reduction processes. John Wiley and Sons Inc. 2016-01-15 2016-02-12 /pmc/articles/PMC4949540/ /pubmed/27478281 http://dx.doi.org/10.1002/ange.201508404 Text en © 2016 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution (http://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Zuschriften Schöfberger, Wolfgang Faschinger, Felix Chattopadhyay, Samir Bhakta, Snehadri Mondal, Biswajit Elemans, Johannes A. A. W. Müllegger, Stefan Tebi, Stefano Koch, Reinhold Klappenberger, Florian Paszkiewicz, Mateusz Barth, Johannes V. Rauls, Eva Aldahhak, Hazem Schmidt, Wolf Gero Dey, Abhishek A Bifunctional Electrocatalyst for Oxygen Evolution and Oxygen Reduction Reactions in Water |
title | A Bifunctional Electrocatalyst for Oxygen Evolution and Oxygen Reduction Reactions in Water |
title_full | A Bifunctional Electrocatalyst for Oxygen Evolution and Oxygen Reduction Reactions in Water |
title_fullStr | A Bifunctional Electrocatalyst for Oxygen Evolution and Oxygen Reduction Reactions in Water |
title_full_unstemmed | A Bifunctional Electrocatalyst for Oxygen Evolution and Oxygen Reduction Reactions in Water |
title_short | A Bifunctional Electrocatalyst for Oxygen Evolution and Oxygen Reduction Reactions in Water |
title_sort | bifunctional electrocatalyst for oxygen evolution and oxygen reduction reactions in water |
topic | Zuschriften |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4949540/ https://www.ncbi.nlm.nih.gov/pubmed/27478281 http://dx.doi.org/10.1002/ange.201508404 |
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