N-doped carbon nanotubes, Fe-doped Co nanoparticles, bifunctional oxygen catalyst, Zn-air batteries, carbon cloth
Transition metal selenides, N-doped carbon nanotube, Bifunctional electrocatalyst, Self-supporting electrode, Zinc-air batteries
Fe-Phen, hollow carbon nanofibers, hierarchical pore structure, Oxygen Reduction Reaction, zinc-air batteries