▎ 摘　　要

NOVELTY - Preparation of graphene involves mixing 10-65% magnesium powder and 35-90% high-molecular polymer, placing obtained mixture in a protective atmosphere, heating mixture using heating agent or through resistance wire heating, performing combustion synthesis reaction, obtaining crude product powder containing graphene, performing acid pickling using 10-37 %mass aqueous hydrochloric acid, and removing magnesium-containing impurities. USE - Preparation of graphene used in composite material, energy storage battery, super capacitor, electronic device, catalyst carrier and sensitive device. ADVANTAGE - The method enables preparation of graphene having special morphologies such as petal shape, fold shape, hollow spherical shape and scaly shape. The obtained graphene is doped with nitrogen, fluorine, boron, or mixture of boron and nitrogen.