Transition metal-based metal-organic frameworks for oxygen evolution reaction

Exploiting advanced electrocatalysts for oxygen evolution reaction (OER) is of vital importance for the development of metal-air batteries, fuel cells and water electrolyzers. Rational design and fabrication of electrocatalysts with high specific areas, abundant expose active sites, and porous structures is an effective approach to improve the electrocatalytic performances. Metal-organic frameworks (MOFs), an emerging class of porous crystalline materials, which possess large surface areas, high porosities, componential and structural diversity, has shown great potential as efficient OER electrocatalysts. This review focus on the recent progress of fabrication and utilization of transition metal (e.g., Fe, Co, and Ni) based MOF materials including pristine MOFs, MOF composites and their derivatives for OER. A variety of typical strategies, including synthetic designs, compositional, and structural modifications for activity improvement of the MOF-based materials in the OER are outlined and discussed. Based on the previous achievements, the current state of the art and the perspectives for the future development of the field are summarized.