Versatile Electrochemical Manufacturing of Mixed Metal Sulfide /N-doped rGO Composites as Bifunctional Catalysts for High Power Rechargeable Zn-Air Batteries

Electrodeposition was used for direct synthesis of nitrogen-dopged reduced graphene oxide (NrGO) and mixed transition metal sulfides (NCMS). The resulting NCMS/NrGO composite exhibits excellent OER/ORR peroformance as Zn–air battery cathode.