▎ 摘　　要

NOVELTY - Preparing graphene comprises preparing intercalant pair carried out by electrochemical oxidation method, ultrasonicating and stirring, blasting stripping, by high-temperature heat oxidation of graphene oxide, reducing, the intercalation agent volatilizes or decomposes, stripping the graphene entering, finally obtaining graphene powder. The raw material is swelling graphite or a carbon paper. USE - The method is useful for preparing graphene (claimed). ADVANTAGE - The method is simple, economical and is suitable for large scale production.