Bimetallic phosphide decorated Mo-BiVO₄ for significantly improved photoelectrochemical activity and stability.

ABSTRACT: Bismuth vanadate photoanode has shown great potential for photoelectrochemical (PEC) catalysis, but it needs to be further modified because of its relatively low charge-separation efficiency and poor stability. Herein, the bimetallic phosphide NiCoP decorated Mo-BiVO₄ is fabricated through the electrodeposition and drop-casting method, which significantly improves the charge separation and surface oxidation reaction. Therefore, the fabricated NiCoP/Mo-BiVO₄ photoanode exhibits a low onset potential of 0.21 V (vs. RHE) and high photocurrent of 3.21 mA cm^-2 at 1.23 V (vs. RHE), which is 3.12 times higher than that of pure BiVO₄. Importantly, the decoration of NiCoP significantly improve the stability of BiVO₄ photoanode.

SUBMITTER: Qi J 

PROVIDER: S-EPMC9064341 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature