A review of graphene-based catalysts for oxygen reduction reaction

The oxygen reduction catalyst is one of the core materials of fuel cells. Research progress on graphene-based catalysts for the oxygen reduction reaction in fuel cells is summarized with a focus on their electrochemical activity, stability and CO tolerance. These catalysts include Pt-graphene, non-precious metal-graphene such as Pd or its alloy-graphene, non-metallic-graphene such as Fe, Co or Ni species-graphene, graphene quantum dots, porous graphene, and graphene doped or co-doped with N, B, P, S and I.