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Perspective | Open Access

Engineering electrode wettability to enhance mass transfer in hydrogen evolution reaction

Chunhui Zhang1,2,3, Ziwei Guo1, Ye Tian2, Cunming Yu1( ), Kesong Liu1( ), Lei Jiang1
School of Chemistry, Beihang University, Beijing 100191, China
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
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Abstract

In hydrogen evolution reaction, inefficient mass transfer caused by bubble adhesion on electrode, bubble dispersion in electrolyte and slow H2 diffusion, has greatly impeded the reaction process. Existing techniques can only resolve bubble adhesion or bubble dispersion problems. Strategy that simultaneously solve bubble adhesion, bubble dispersion and poor hydrogen diffusion problems is rarely reported. Recently, an article reported a new electrode with special wettability design, which can efficiently promote bubble transfer and dissolved H2 diffusion. This design can simultaneously solve above mentioned three mass transfer issues and improve electrode efficiency. We summarize the remaining challenges of this work and outlook potential approaches to promote mass transfer in gas-evolution reactions.

Keywords

hydrogen evolution reactionwettabilitybubblemass transfer

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Nano Research Energy
Volume 2 Issue 2,
June 2023
Article number: e9120063
DOI: 10.26599/NRE.2023.9120063
Cite this article:
Zhang C, Guo Z, Tian Y, et al. Engineering electrode wettability to enhance mass transfer in hydrogen evolution reaction. Nano Research Energy, 2023, 2: e9120063. https://doi.org/10.26599/NRE.2023.9120063

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Received: 30 January 2023
Revised: 15 February 2023
Accepted: 25 February 2023
Published: 20 March 2023
© The Author(s) 2023. Published by Tsinghua University Press.

The articles published in this open access journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
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