▎ 摘　　要

NOVELTY - Production of graphene, involves providing oxidized graphene and dialyzing graphene, freeze drying the dialyzed-oxidized graphene, subjecting freeze-dried graphene oxide to thermal reduction reaction, to obtain thermally reduced product, subjecting the thermally reduced product to chemical reduction, to obtain graphene. USE - Production of graphene (claimed). ADVANTAGE - The production cost is reduced, and simplified equipment is used. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for graphene.