Organocatalytic Hydrogen Evolution Reaction by Diazaphospholenes

作者：Kaini Xu, Yushan Zhang, Bing Zhong, Long Zhang, Jin‐Dong Yang, Sanzhong Luo · 发表于：Journal of the American Chemical Society · 年份：2024 · DOI：10.1021/jacs.4c10302 · 被引用次数：20 · 研究领域：Asymmetric Hydrogenation and Catalysis、Electrocatalysts for Energy Conversion、Organic Chemistry Cycloaddition Reactions

The electrochemical hydrogen evolution reaction (HER) is currently recognized as a prospective way to obtain clean energy. The electrocatalysts used currently are dominantly based on transition metals. In this work, we have demonstrated a diazaphospholene ( N -heterocyclic phosphine (NHP))-type small molecular organocatalyst that can catalyze the HER with a maximum current density of 130 mA·cm –2, an overpotential of 354 mV, and a faradaic efficiency of 90%. Mechanistic studies verify a Heyrovsky-type process with NHP, whereas its hydricity and aromaticity favor hydrogen release and catalyst regeneration.