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In-situ decorated cobalt phosphide cocatalyst on Hittorf's phosphorus triggering efficient photocatalytic hydrogen production
Abiduweili Sikandaier, Yukun Zhu*, Dongjiang Yang*
Chin. J. Struct. Chem., 2024, 43: 100242. DOI: 10.1016/j.cjsc.2024.100242
February 15, 2024
ABSTRACT
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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