Photocatalytic dehydrogenation of formic acid (FA) under mild conditions can meet the increasing demand for H₂ generation in a sustainable manner. In this work, ultrasmall CoP nanoparticle (NP) is first introduced as an efficient and robust cocatalyst for photocatalytic FA dehydrogenation. Both the density function theory and experimental results show excellent H₂ production property for CoP NPs. The H₂ production rate for the CdS/[email protected] hybrid under visible light irradiation without any additives can reach up to 182 ± 12.5 μmol·mg⁻¹·hr⁻¹, which is more than 30 times higher than that of bare CdS and over 3 times the reported value of classical noble metal Pd/C₃N₄ photocatalysts. The system can be sustained for more than 7 days, which is promising for practical application. The present work not only introduces a highly active catalyst but also provides a feasible strategy for construction of a low-cost photocatalytic FA dehydrogenation system under mild conditions.

在温和条件下甲酸（FA）的光催化脱氢可以可持续的方式满足对H ₂生成的日益增长的需求。在这项工作中，超小型CoP纳米颗粒（NP）首次作为光催化FA脱氢的有效和强大的助催化剂而被引入。密度泛函理论和实验结果均表明CoP NP具有出色的H ₂产生性能。在不添加任何添加剂的情况下，可见光辐照下CdS / [受电子邮件保护的]杂化物的H ₂生成速率可达到182±12.5μmol·mg ^-1 ·hr ^-1，比裸CdS高30倍以上是传统贵金属Pd / C ₃ N报道值的3倍以上_4种光催化剂。该系统可以维持7天以上，这对于实际应用是有希望的。目前的工作不仅引入了高活性催化剂，而且为在温和条件下构建低成本光催化FA脱氢系统提供了可行的策略。