Porphyrins-Assisted Cocatalyst Engineering with CoOV Bond in BiVO Photoanode for Efficient Oxygen Evolution Reaction.

The application of photoelectrochemical (PEC) water splitting is limited by the sluggish surface oxygen evolution reaction (OER) kinetics. OER kinetics can be effectively improved through cocatalyst engineering. However, the tardy transfer process and serious recombination of carriers are the key factors restricting the cocatalyst development.