Metal/covalent–organic frameworks-based electrocatalysts for water splitting

Abstract

Sustainable hydrogen production through water splitting provides an appealing solution for hydrogen energy to achieve a carbon neutral future. However, the realization and scalability of this technology requires efficient electrocatalysts to promote cathodic hydrogen evolution and anodic oxygen evolution. The rapid evolution of the metal/covalent–organic frameworks (MOFs/COFs) family provides new opportunities for the development of water splitting. This review summarizes recent advances of MOF- and COF-based electrocatalysts for water electrolysis and highlights the advantages of these electrocatalysts over those conventionally used. Particular attentions are paid to the design principles, construction strategies, and structure–property relationships for MOF/COF-based electrocatalysts. Finally, current challenges and future perspectives of MOF/COF-based electrocatalysts for water splitting are also presented. We hope this review will provide a timely reference for advancing MOF/COF-based electrode materials towards practicable water splitting and useful insights for future energy technologies beyond water electrolysis.