Stable metal–organic frameworks for PEC water splitting

Abstract Photoelectrochemical (PEC) water splitting into H2 and O2 has been regarded as a promising strategy to achieve solar-to-chemical energy conversion. Metal-organic frameworks (MOFs) are emerging as promising photoelectrocatalysts for this significant energy conversion reaction owing to their unique photochemical and textural properties. In this review, we summarized recent advances in the construction of stable MOFs for PEC water splitting, involving main group metal-carboxylate frameworks, transition metal-carboxylate frameworks, transition metal-azolate frameworks, rare earth metal-carboxylate frameworks, as well as post-synthetic MOFs. We particularly analyzed and discussed the correlation between catalytic performance and catalyst structures, based on which, we put forward a perspective for construction of efficient MOFs for PEC water splitting.