Improving performance for efficient photoelectrochemical water splitting

Photoelectrochemical water splitting is a promising green technique for renewable hydrogen production. It is necessary to explore a series of methods to improve the PEC performance of BiVO4. Most WO3 arrays on FTO electrodes exhibit small array gaps to construct a highly matched BiVO4/WO3 heterojunction with BiVO4. The highly matched BiVO4/WO3 interface can also enhance the charge separation of BiVO4, which plays an important role in the PEC process. To enhance the water oxidation kinetics, the authors further loaded an OEC layer on the BiVO4/WO3NB heterojunction photoanode, which produced about 5 times higher photocurrent and IPCE than pristine BiVO4 under one sunlight condition. More information: Wen Zhang et al, Conformal BiVO4/WO3 nanobowl array photoanode for efficient photoelectrochemical water splitting, Chinese Journal of Catalysis. Citation: Improving performance for efficient photoelectrochemical water splitting retrieved 27 September 2022 from https://phys. org/news/2022-09-efficient-photoelectrochemical.