Intimate Interfacial Interaction between Amino-Modified Ti-5 Clusters and BiVO4 towards Efficient Photoelectrochemical Water Splitting

In this work, a novel series of amino-modified Ti-5 clusters (NH2-TOCs) with a Janus surface were synthesized. Then, a facile hydrolysis self-assembly strategy was adopted to fabricate a well-defined monolayer of NH2-TOCs on BiVO4 with intimate interaction at low temperature. The as-formed NH2-TOCs/BiVO4 heterojunction electrode exhibited high performance on photoelectrochemical water-splitting, which was ascribed to strong M-O-Ti (M=Bi, V) bonding at the interface. It is anticipated that this work could boost new insights for cluster-support interaction and corresponding applications.