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

The rod-like HP/CoP 2 composite synthesized by chemical vapor deposition and subsequent template etching process has demonstrated to be an effective visible light (λ > 420 nm) driven photocatalyst for hydrogen evolution reaction (HER) from pure water splitting. The optimal HP/CoP 2 composite with CoP 2 as cocatalyst exhibited an excellent HER rate of 13.1 μmol h −1 , significantly outperforming HP with Pt as cocatalyst (3.3 μmol h −1 ) under the same experimental conditions.