Citation: Abiduweili Sikandaier, Yukun Zhu, Dongjiang Yang. In-situ decorated cobalt phosphide cocatalyst on Hittorf's phosphorus triggering efficient photocatalytic hydrogen production[J]. Chinese Journal of Structural Chemistry, ;2024, 43(2): 100242. doi: 10.1016/j.cjsc.2024.100242 shu

In-situ decorated cobalt phosphide cocatalyst on Hittorf's phosphorus triggering efficient photocatalytic hydrogen production

In conclusion, the rod-like HP/CoP2 composite synthesized by CVD and subsequent template etching process has demonstrated to be an effective visible light driven photocatalyst for HER from pure water splitting for the first time. Remarkably, the optimized HP/CoP2 exhibited an excellent photocatalytic HER rate of 13.1 μmol h-1, which is about 4 times higher than that of HP/Pt under identical experimental conditions. The experimental results reveal that CoP2 served as nucleation sites for the growth of one-dimensional HP rods, establishing a close interfacial contact through Co–P bonds between HP and CoP2 to facilitate charge-carrier separation and migration. Additionally, the decoration of CoP2 on HP acted as cocatalyst further promoting the HER kinetics. Consequently, a significantly enhanced photocatalytic hydrogen production performance was achieved in the optimized HP/CoP2 composite. This finding introduces a novel approach in the design of superior phosphorus-based photocatalysts for water splitting.
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