Zeolitic imidazolite framework derived bifunctional N,P-codoped hollow carbon sphere electrocatalysts decorated with Co2P/Fe for rechargeable Zn–air batteries

Co 2 P nanoparticles and Fe–N x species were anchored on N,P codoped hollow carbonized spheres by structural and active site engineering. This work provides a facile strategy for the construction of bifunctional electrocatalysts for Zn–air batteries.