Recent progress in electrode fabrication for electrocatalytic hydrogen evolution reaction: A mini review
Recent progress in electrode fabrication for electrocatalytic hydrogen evolution reaction: A mini review
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DOI：
10.1016/j.cej.2020.124726
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发表时间：
2020-08
影响因子：
15.1
通讯作者：
Wei Yang;Shaowei Chen
中科院分区：
文献类型：
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作者：
Wei Yang;Shaowei Chen
电化学析氢反应（HER）对于高效、低成本制氢具有重要意义。近年来，随着催化剂的析氢活性显着提高，从催化剂到电极的路径是实际析氢应用的关键一步。在 HER 电极中，氢还原是通过电子转移、质子扩散和气泡释放来完成的。在电极的设计、工程和制造中应考虑这些过程。在这篇综述中，我们首先讨论这些重要问题与整体电化学 HER 性能之间的相关性，然后总结 HER 电极设计和制造的最新进展，重点关注电极结构、电解质渗透、离子扩散和气泡粘附/释放对 HER 性能的影响。最后，我们提出了进一步增强的策略以及 HER 电极制造的关键挑战。
Electrochemical hydrogen evolution reaction (HER) is of great importance for high-efficiency, low-cost production of hydrogen. As the HER activity of catalysts has been significantly improved in recent years, the routings from catalysts to electrodes represent a key step for practical HER applications. In an HER electrode, hydrogen reduction is accomplished by electron transfer, proton diffusion and bubble release. These processes should be taken into account in the design, engineering and fabrication of the electrode. In this review, we begin with a discussion of the correlation between these important issues and the overall electrochemical HER performance, and then summarize recent progress in the design and fabrication of HER electrodes, with a focus on the effects of electrode structure, electrolyte penetration, ion diffusion and bubble adhesion/release on the HER performance. We conclude with a perspective of strategies for further enhancement and the critical challenges for HER electrode fabrication.