Interface Engineering of CoS/CoO@N-Doped Graphene Nanocomposite for High-Performance Rechargeable Zn–Air Batteries

Interface engineering of heterogeneous CoS/CoO nanocrystals and N-doped graphene composite facilitates high-performance oxygen reduction reaction and oxygen evolution reaction. Density functional theory calculations and experimental results confirm the enhanced electrocatalytic performances via the proposed interface engineering. The bifunctional oxygen electrocatalyst exhibits excellent performances in rechargeable Zn–air batteries.