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https://hdl.handle.net/10356/168656
Title: | Reversible hydrogen spillover in Ru-WO₃₋ₓ enhances hydrogen evolution activity in neutral pH water splitting | Authors: | Chen, Jiadong Chen, Chunhong Qin, Minkai Li, Ben Lin, Binbin Mao, Qing Yang, Hongbin Liu, Bin Wang, Yong |
Keywords: | Engineering::Chemical engineering | Issue Date: | 2022 | Source: | Chen, J., Chen, C., Qin, M., Li, B., Lin, B., Mao, Q., Yang, H., Liu, B. & Wang, Y. (2022). Reversible hydrogen spillover in Ru-WO₃₋ₓ enhances hydrogen evolution activity in neutral pH water splitting. Nature Communications, 13(1), 5382-. https://dx.doi.org/10.1038/s41467-022-33007-3 | Project: | MOET2EP10120-0002 AME IRG: A20E5c0080 RG4/20 MOET2EP10120-0002 |
Journal: | Nature Communications | Abstract: | 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 WO3-x manifested a 24.0-fold increase in hydrogen evolution reaction (HER) activity compared with commercial Ru/C electrocatalyst in neutral electrolyte. Oxygen-deficient WO3-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. | URI: | https://hdl.handle.net/10356/168656 | ISSN: | 2041-1723 | DOI: | 10.1038/s41467-022-33007-3 | Schools: | School of Physical and Mathematical Sciences School of Chemical and Biomedical Engineering |
Rights: | © 2022 The Author(s). 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/. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | SCBE Journal Articles SPMS Journal Articles |
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