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The rapid electrochemical activation of MoTe(2) for the hydrogen evolution reaction
The electrochemical generation of hydrogen is a key enabling technology for the production of sustainable fuels. Transition metal chalcogenides show considerable promise as catalysts for this reaction, but to date there are very few reports of tellurides in this context, and none of these transition...
Autores principales: | , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6820771/ https://www.ncbi.nlm.nih.gov/pubmed/31664018 http://dx.doi.org/10.1038/s41467-019-12831-0 |
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author | McGlynn, Jessica C. Dankwort, Torben Kienle, Lorenz Bandeira, Nuno A. G. Fraser, James P. Gibson, Emma K. Cascallana-Matías, Irene Kamarás, Katalin Symes, Mark D. Miras, Haralampos N. Ganin, Alexey Y. |
author_facet | McGlynn, Jessica C. Dankwort, Torben Kienle, Lorenz Bandeira, Nuno A. G. Fraser, James P. Gibson, Emma K. Cascallana-Matías, Irene Kamarás, Katalin Symes, Mark D. Miras, Haralampos N. Ganin, Alexey Y. |
author_sort | McGlynn, Jessica C. |
collection | PubMed |
description | The electrochemical generation of hydrogen is a key enabling technology for the production of sustainable fuels. Transition metal chalcogenides show considerable promise as catalysts for this reaction, but to date there are very few reports of tellurides in this context, and none of these transition metal telluride catalysts are especially active. Here, we show that the catalytic performance of metallic 1T′-MoTe(2) is improved dramatically when the electrode is held at cathodic bias. As a result, the overpotential required to maintain a current density of 10 mA cm(−2) decreases from 320 mV to just 178 mV. We show that this rapid and reversible activation process has its origins in adsorption of H onto Te sites on the surface of 1T′-MoTe(2). This activation process highlights the importance of subtle changes in the electronic structure of an electrode material and how these can influence the subsequent electrocatalytic activity that is displayed. |
format | Online Article Text |
id | pubmed-6820771 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-68207712019-10-31 The rapid electrochemical activation of MoTe(2) for the hydrogen evolution reaction McGlynn, Jessica C. Dankwort, Torben Kienle, Lorenz Bandeira, Nuno A. G. Fraser, James P. Gibson, Emma K. Cascallana-Matías, Irene Kamarás, Katalin Symes, Mark D. Miras, Haralampos N. Ganin, Alexey Y. Nat Commun Article The electrochemical generation of hydrogen is a key enabling technology for the production of sustainable fuels. Transition metal chalcogenides show considerable promise as catalysts for this reaction, but to date there are very few reports of tellurides in this context, and none of these transition metal telluride catalysts are especially active. Here, we show that the catalytic performance of metallic 1T′-MoTe(2) is improved dramatically when the electrode is held at cathodic bias. As a result, the overpotential required to maintain a current density of 10 mA cm(−2) decreases from 320 mV to just 178 mV. We show that this rapid and reversible activation process has its origins in adsorption of H onto Te sites on the surface of 1T′-MoTe(2). This activation process highlights the importance of subtle changes in the electronic structure of an electrode material and how these can influence the subsequent electrocatalytic activity that is displayed. Nature Publishing Group UK 2019-10-29 /pmc/articles/PMC6820771/ /pubmed/31664018 http://dx.doi.org/10.1038/s41467-019-12831-0 Text en © The Author(s) 2019 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 McGlynn, Jessica C. Dankwort, Torben Kienle, Lorenz Bandeira, Nuno A. G. Fraser, James P. Gibson, Emma K. Cascallana-Matías, Irene Kamarás, Katalin Symes, Mark D. Miras, Haralampos N. Ganin, Alexey Y. The rapid electrochemical activation of MoTe(2) for the hydrogen evolution reaction |
title | The rapid electrochemical activation of MoTe(2) for the hydrogen evolution reaction |
title_full | The rapid electrochemical activation of MoTe(2) for the hydrogen evolution reaction |
title_fullStr | The rapid electrochemical activation of MoTe(2) for the hydrogen evolution reaction |
title_full_unstemmed | The rapid electrochemical activation of MoTe(2) for the hydrogen evolution reaction |
title_short | The rapid electrochemical activation of MoTe(2) for the hydrogen evolution reaction |
title_sort | rapid electrochemical activation of mote(2) for the hydrogen evolution reaction |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6820771/ https://www.ncbi.nlm.nih.gov/pubmed/31664018 http://dx.doi.org/10.1038/s41467-019-12831-0 |
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