Co-MOF-derived core–shell CoP@Co3O4 nanoparticle loaded N-doped graphene: an efficient catalyst for the oxygen evolution reaction

An N-doped graphene-supported CoP@Co 3 O 4 core–shell structure was prepared by a simple one-step pyrolysis of a novel Co-MOF. The active nanoparticles embedded in the graphene layer ensure high conductivity and stability of the catalyst.