Metal–organic framework-based electrocatalysts for acidic oxygen evolution reaction

The proton exchange membrane water electrolyzer (PEMWE) has attracted significant attention as a promising technology for large-scale hydrogen production. However, the challenge in developing stable and active catalysts for acidic oxygen evolution reaction (OER) restricts the overall water splitting efficiency. Recently, metal–organic framework (MOF)-based materials have been widely explored as electrocatalysts for acidic OER due to their intrinsically porous structures and excellent tunability. In this review article, the acidic OER mechanism and advanced strategies for designing efficient MOF-based acidic OER electrocatalysts are highlighted. Finally, the challenges and perspectives for the exploration of robust MOF-based OER electrocatalysts in acidic media are discussed.