▎ 摘　　要

NOVELTY - Performing injection synthesis method of large-size graphene reduced graphene oxide (RGO) sheet involves weighing the graphite powder, stirring and mixing the graphite powder and the mixed acid to obtain a mixed solution of graphite powder and the mixed acid. The potassium permanganate powder is added to the mixed solution of graphite powder and mixed acid, and continue to stirred to obtain a mixed solution of graphite powder, mixed acid and potassium permanganate.The hydrogen peroxide is poured into the mixed liquid of graphite powder, mixed acid and potassium permanganate, and continue to stir to obtain a mixed liquid containing graphene oxide flakes, and diluted, centrifuged, and cleaned the mixed solution containing graphene oxide flakes to obtain graphene oxide. The obtained graphene oxide is dispersed, and reduced to obtain large-size graphene sheets. USE - Method for performing injection synthesis method of large-size graphene reduced graphene oxide sheet.