Solar‐to‐hydrogen conversion based on photocatalytic and photoelectrocatalytic water splitting is considered as a promising technology for sustainable hydrogen production. Developing earth‐abundant H₂‐production materials with robust activity and stability has become the mainstream in this field. Due to the unique properties and characteristics, transition metal phosphides (TMPs) have been proven to be high performance co‐catalysts to replace some of the classic precious metal materials in photocatalytic water splitting. In this Minireview, we summarize the recent significant progress of TMPs as cocatalysts for water splitting reaction with high activity and stability. Firstly, the characteristic of TMPs is briefly introduced. Then, we mainly discuss the recent research efforts toward their application as photocatalytic co‐catalysts in photocatalytic H₂‐production, O₂‐evolution and photoelectrochemical water splitting. Finally, the catalytic mechanism, current existing challenges and future working directions for improving the performance of TMPs are proposed.

中文翻译：

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金属磷酸盐作为光催化和光电催化水分解的助催化剂

基于光催化和光电催化水分解的太阳能转化为氢是可持续制氢的有前途的技术。产生富地球的H ₂具有强大活性和稳定性的生产材料已成为该领域的主流。由于其独特的性能和特性，过渡金属磷化物（TMP）已被证明是高性能的助催化剂，可以代替光催化水分解中的一些经典的贵金属材料。在此Minireview中，我们总结了TMPs作为助催化剂具有高活性和稳定性的水分解反应的最新重大进展。首先简要介绍了TMP的特点。然后，我们主要讨论其作为光催化助催化剂在光催化生产H ₂，O _2中的应用的最新研究成果。演化和光电化学水分解。最后，提出了改善TMPs性能的催化机制，当前存在的挑战和未来的工作方向。