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Unraveling the Role of Lithium in Enhancing the Hydrogen Evolution Activity of MoS(2): Intercalation versus Adsorption
[Image: see text] Molybdenum disulfide (MoS(2)) is a highly promising catalyst for the hydrogen evolution reaction (HER) to realize large-scale artificial photosynthesis. The metallic 1T′-MoS(2) phase, which is stabilized via the adsorption or intercalation of small molecules or cations such as Li,...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2019
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6630958/ https://www.ncbi.nlm.nih.gov/pubmed/31328171 http://dx.doi.org/10.1021/acsenergylett.9b00945 |
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author | Wu, Longfei Dzade, Nelson Y. Yu, Miao Mezari, Brahim van Hoof, Arno J. F. Friedrich, Heiner de Leeuw, Nora H. Hensen, Emiel J. M. Hofmann, Jan P. |
author_facet | Wu, Longfei Dzade, Nelson Y. Yu, Miao Mezari, Brahim van Hoof, Arno J. F. Friedrich, Heiner de Leeuw, Nora H. Hensen, Emiel J. M. Hofmann, Jan P. |
author_sort | Wu, Longfei |
collection | PubMed |
description | [Image: see text] Molybdenum disulfide (MoS(2)) is a highly promising catalyst for the hydrogen evolution reaction (HER) to realize large-scale artificial photosynthesis. The metallic 1T′-MoS(2) phase, which is stabilized via the adsorption or intercalation of small molecules or cations such as Li, shows exceptionally high HER activity, comparable to that of noble metals, but the effect of cation adsorption on HER performance has not yet been resolved. Here we investigate in detail the effect of Li adsorption and intercalation on the proton reduction properties of MoS(2). By combining spectroscopy methods (infrared of adsorbed NO, (7)Li solid-state nuclear magnetic resonance, and X-ray photoemission and absorption) with catalytic activity measurements and theoretical modeling, we infer that the enhanced HER performance of Li(x)MoS(2) is predominantly due to the catalytic promotion of edge sites by Li. |
format | Online Article Text |
id | pubmed-6630958 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-66309582019-07-18 Unraveling the Role of Lithium in Enhancing the Hydrogen Evolution Activity of MoS(2): Intercalation versus Adsorption Wu, Longfei Dzade, Nelson Y. Yu, Miao Mezari, Brahim van Hoof, Arno J. F. Friedrich, Heiner de Leeuw, Nora H. Hensen, Emiel J. M. Hofmann, Jan P. ACS Energy Lett [Image: see text] Molybdenum disulfide (MoS(2)) is a highly promising catalyst for the hydrogen evolution reaction (HER) to realize large-scale artificial photosynthesis. The metallic 1T′-MoS(2) phase, which is stabilized via the adsorption or intercalation of small molecules or cations such as Li, shows exceptionally high HER activity, comparable to that of noble metals, but the effect of cation adsorption on HER performance has not yet been resolved. Here we investigate in detail the effect of Li adsorption and intercalation on the proton reduction properties of MoS(2). By combining spectroscopy methods (infrared of adsorbed NO, (7)Li solid-state nuclear magnetic resonance, and X-ray photoemission and absorption) with catalytic activity measurements and theoretical modeling, we infer that the enhanced HER performance of Li(x)MoS(2) is predominantly due to the catalytic promotion of edge sites by Li. American Chemical Society 2019-06-27 2019-07-12 /pmc/articles/PMC6630958/ /pubmed/31328171 http://dx.doi.org/10.1021/acsenergylett.9b00945 Text en Copyright © 2019 American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes. |
spellingShingle | Wu, Longfei Dzade, Nelson Y. Yu, Miao Mezari, Brahim van Hoof, Arno J. F. Friedrich, Heiner de Leeuw, Nora H. Hensen, Emiel J. M. Hofmann, Jan P. Unraveling the Role of Lithium in Enhancing the Hydrogen Evolution Activity of MoS(2): Intercalation versus Adsorption |
title | Unraveling the Role of Lithium in Enhancing the Hydrogen
Evolution Activity of MoS(2): Intercalation versus Adsorption |
title_full | Unraveling the Role of Lithium in Enhancing the Hydrogen
Evolution Activity of MoS(2): Intercalation versus Adsorption |
title_fullStr | Unraveling the Role of Lithium in Enhancing the Hydrogen
Evolution Activity of MoS(2): Intercalation versus Adsorption |
title_full_unstemmed | Unraveling the Role of Lithium in Enhancing the Hydrogen
Evolution Activity of MoS(2): Intercalation versus Adsorption |
title_short | Unraveling the Role of Lithium in Enhancing the Hydrogen
Evolution Activity of MoS(2): Intercalation versus Adsorption |
title_sort | unraveling the role of lithium in enhancing the hydrogen
evolution activity of mos(2): intercalation versus adsorption |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6630958/ https://www.ncbi.nlm.nih.gov/pubmed/31328171 http://dx.doi.org/10.1021/acsenergylett.9b00945 |
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