Heterogeneity in a metal–organic framework in situ guides engineering Co@CoO heterojunction for electrocatalytic H2 production in tandem with glucose oxidation

Heterogeneity in metal–organicframeworks (MOFs) guides the engineering of controllable Co@CoO Mott–Schottky heterojunctions on N-doped graphene, which could drive energy-saving H 2 production device in tandem with glucose oxidization.