Jin Mengtian, Zhang Xian, Niu Shuzhang, Wang Qun, Huang Runqing, Ling Ruihua, Huang Jiaqi, Shi Run, Amini Abbas, Cheng Chun
Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China.
ACS Nano. 2022 Aug 23;16(8):11577-11597. doi: 10.1021/acsnano.2c02820. Epub 2022 Aug 11.
The depletion of fossil fuels and rapidly increasing environmental concerns have urgently called for the utilization of clean and sustainable sources for future energy supplies. Hydrogen (H) is recognized as a prioritized green resource with little environmental impact to replace traditional fossil fuels. Electrochemical water splitting has become an important method for large-scale green production of hydrogen. The hydrogen evolution reaction (HER) is the cathodic half-reaction of water splitting that can be promoted to produce pure H in large quantities by active electrocatalysts. However, the unsatisfactory performance of HER electrocatalysts cannot follow the extensive requirements of industrial-scale applications, including working efficiently and stably over long periods of time at high current densities (⩾1000 mA cm). In this review, we study the crucial issues when electrocatalysts work at high current densities and summarize several categories of strategies for the design of high-performance HER electrocatalysts. We also discuss the future challenges and opportunities for the development of HER catalysts.
化石燃料的枯竭以及环境问题的迅速加剧，迫切要求利用清洁且可持续的能源来满足未来的能源供应。氢（H）被视为一种优先的绿色资源，对环境影响极小，有望取代传统化石燃料。电化学水分解已成为大规模绿色制氢的重要方法。析氢反应（HER）是水分解的阴极半反应，通过活性电催化剂可促进其大量产生纯氢。然而，HER电催化剂性能不尽人意，无法满足工业规模应用的广泛需求，包括在高电流密度（⩾1000 mA cm）下长时间高效稳定地工作。在本综述中，我们研究了电催化剂在高电流密度下工作时的关键问题，并总结了几类高性能HER电催化剂的设计策略。我们还讨论了HER催化剂发展面临的未来挑战与机遇。
