▎ 摘　　要

NOVELTY - Hexagonal boron nitride nano-sheet-reduction-oxidation-graphene composite material electro-catalyst, comprises hexagonal boron nitride nano-sheet having diameter of 1-10 mum, uniformly dispersed on the plane graphene. The diameter of the reduced oxidation graphite is 50-100 mum. The composite material has a large number of defect sites, does not contain additional functional group, and does not contain any metal catalyst. USE - The hexagonal boron nitride nano-sheet-reduction-oxidation-graphene composite material electro-catalyst is useful in an electrocatalytic oxygen reduction reaction (claimed). ADVANTAGE - The hexagonal boron nitride nano-sheet-reduction oxidation graphene composite material electro-catalyst has low cost and good catalytic performance. The method is simple, which is good for forming industrial production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing hexagonal boron nitride nano-sheet-reduction-oxidation-graphene composite material electro-catalyst which involves: (1) ultrasonically dispersing the electrochemical catalyst in a solvent to obtain paste slurry; and (2) coating the paste slurry on the surface element of the electrochemical electrode dry, obtaining the electrochemical catalyst based on hexagonal boron nitride nano-sheet-reduction-oxidation graphene composite material.