Reversible hydrogen spillover in Ru-WO(3-x) enhances hydrogen evolution activity in neutral pH water splitting

Noble metal electrocatalysts (e.g., Pt, Ru, etc.) suffer from sluggish kinetics of water dissociation for the electrochemical reduction of water to molecular hydrogen in alkaline and neutral pH environments. Herein, we found that an integration of Ru nanoparticles (NPs) on oxygen-deficient WO(3-x) m...

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Autores principales: Chen, Jiadong, Chen, Chunhong, Qin, Minkai, Li, Ben, Lin, Binbin, Mao, Qing, Yang, Hongbin, Liu, Bin, Wang, Yong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9474501/
https://www.ncbi.nlm.nih.gov/pubmed/36104336
http://dx.doi.org/10.1038/s41467-022-33007-3
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author Chen, Jiadong
Chen, Chunhong
Qin, Minkai
Li, Ben
Lin, Binbin
Mao, Qing
Yang, Hongbin
Liu, Bin
Wang, Yong
author_facet Chen, Jiadong
Chen, Chunhong
Qin, Minkai
Li, Ben
Lin, Binbin
Mao, Qing
Yang, Hongbin
Liu, Bin
Wang, Yong
author_sort Chen, Jiadong
collection PubMed
description Noble metal electrocatalysts (e.g., Pt, Ru, etc.) suffer from sluggish kinetics of water dissociation for the electrochemical reduction of water to molecular hydrogen in alkaline and neutral pH environments. Herein, we found that an integration of Ru nanoparticles (NPs) on oxygen-deficient WO(3-x) manifested a 24.0-fold increase in hydrogen evolution reaction (HER) activity compared with commercial Ru/C electrocatalyst in neutral electrolyte. Oxygen-deficient WO(3-x) is shown to possess large capacity for storing protons, which could be transferred to the Ru NPs under cathodic potential. This significantly increases the hydrogen coverage on the surface of Ru NPs in HER and thus changes the rate-determining step of HER on Ru from water dissociation to hydrogen recombination.
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spelling pubmed-94745012022-09-16 Reversible hydrogen spillover in Ru-WO(3-x) enhances hydrogen evolution activity in neutral pH water splitting Chen, Jiadong Chen, Chunhong Qin, Minkai Li, Ben Lin, Binbin Mao, Qing Yang, Hongbin Liu, Bin Wang, Yong Nat Commun Article Noble metal electrocatalysts (e.g., Pt, Ru, etc.) suffer from sluggish kinetics of water dissociation for the electrochemical reduction of water to molecular hydrogen in alkaline and neutral pH environments. Herein, we found that an integration of Ru nanoparticles (NPs) on oxygen-deficient WO(3-x) manifested a 24.0-fold increase in hydrogen evolution reaction (HER) activity compared with commercial Ru/C electrocatalyst in neutral electrolyte. Oxygen-deficient WO(3-x) is shown to possess large capacity for storing protons, which could be transferred to the Ru NPs under cathodic potential. This significantly increases the hydrogen coverage on the surface of Ru NPs in HER and thus changes the rate-determining step of HER on Ru from water dissociation to hydrogen recombination. Nature Publishing Group UK 2022-09-14 /pmc/articles/PMC9474501/ /pubmed/36104336 http://dx.doi.org/10.1038/s41467-022-33007-3 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Chen, Jiadong
Chen, Chunhong
Qin, Minkai
Li, Ben
Lin, Binbin
Mao, Qing
Yang, Hongbin
Liu, Bin
Wang, Yong
Reversible hydrogen spillover in Ru-WO(3-x) enhances hydrogen evolution activity in neutral pH water splitting
title Reversible hydrogen spillover in Ru-WO(3-x) enhances hydrogen evolution activity in neutral pH water splitting
title_full Reversible hydrogen spillover in Ru-WO(3-x) enhances hydrogen evolution activity in neutral pH water splitting
title_fullStr Reversible hydrogen spillover in Ru-WO(3-x) enhances hydrogen evolution activity in neutral pH water splitting
title_full_unstemmed Reversible hydrogen spillover in Ru-WO(3-x) enhances hydrogen evolution activity in neutral pH water splitting
title_short Reversible hydrogen spillover in Ru-WO(3-x) enhances hydrogen evolution activity in neutral pH water splitting
title_sort reversible hydrogen spillover in ru-wo(3-x) enhances hydrogen evolution activity in neutral ph water splitting
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9474501/
https://www.ncbi.nlm.nih.gov/pubmed/36104336
http://dx.doi.org/10.1038/s41467-022-33007-3
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