Improving oxygen reduction reaction and oxygen evolution reaction activities with Ru–NiCo nanoparticles decorated on porous nitrogen-doped carbon for rechargeable Zn–air batteries and OER electrocatalysts

A series of nitrogen-doped carbon (CN) with NiCo alloys have been synthesized by pyrolyzing a simple bimetal zeolitic-imidazolate framework (ZIF) and further evenly loaded with metallic Ru nanoparticles to obtain Ru–NiCo/NC samples.