The latest developments of bifunctional oxygen electrocatalysts for Zn–air batteries (ZABs) are comprehensively summarized and evaluated, laying special emphasis on the challenges, outlooks and directions of future research for the ZAB industry.

MOF-derived Fe,Co@N-C bifunctional electrocatalysts for oxygen reduction reactions and oxygen evolution reactions have been prepared via a scalable method, exhibiting ultra-high catalytic activity and promising performance in Zn–air batteries.

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