Application of metal.organic frameworks and their derivatives for water splitting and zinc.air batteries

The green energy conversion and storage technologies such as water splitting and zinc- air batteries (ZABs) open a new path to solve the energy crisis and achieve carbon neutrality goals. However, the practical applications of these technologies are largely limited by the sluggish kinetics of hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and oxygen reduction reaction (ORR). Therefore, it is urgent to develop efficient and stable electrocatalysts to effectively reduce reaction overpotential and accelerate the processes of electrocatalytic reactions. Metal- organic frameworks (MOFs) have emerged as one of the most widely investigated materials in catalysis mainly due to their flexible and tunable compositions and precise and controllable structures. This article mainly introduces the recent research progress of MOFs- based electrocatalysts in water splitting and ZABs with emphasis on their preparation strategies and architecture characteristics. Finally, some summaries and outlooks of the existing problems and development trends in this field are put forward.