▎ 摘　　要

NOVELTY - Preparation of hollow graphene nanospheres involves dissolving divalent metal salt, surfactant and the precipitant in a solvent, obtaining mixed solution, heating, refluxing, obtaining suspension, subjecting obtained suspension to suction filtration, drying filter cake, obtaining powder, subjecting to carbonization treatment, obtaining black powder, subjecting to acid etching treatment and obtaining black powder as hollow graphene nanospheres. USE - Preparation of hollow graphene nanospheres (claimed). ADVANTAGE - The method efficiently provides hollow graphene nanospheres by simple method with high productivity.