CuO/rGO composite material having efficient electrocatalysis oxygen reducing performance

The invention relates to a CuO/rGO composite material having efficient electrocatalysis oxygen reducing performance and belongs to the technical field of electrocatalysis materials. Nano CuO particles are attached onto a reduced-oxidized graphene sheet layer, a mass ratio of nano CuO and rGO is 100:3-5, size of the nano CuO particles is 6-10nm, the reduced-oxidized graphene sheet layer is a single sheet layer, and the CuO/rGO composite material has electrocatalysis oxygen reducing performance. Compared with existing oxygen reducing reaction catalysts, the CuO/rGO composite material has the advantage that cost is lowered obviously; the CuO/rGO composite material is an oxygen reducing reaction catalyst low in cost and excellent in electrocatalysis oxygen reducing performance. The CuO/rGO composite material is synthesized by taking copper salt, hydroxide and graphene oxide as raw materials, deionized water and anhydrous alcohol as solvents and ethylene glycol as a dispersant and reductant and adopting a hydrothe