▎ 摘　　要

NOVELTY - Mass preparation of graphene, comprises: utilizing a cathode and an anode under atmospheric pressure for rapidly heating by arc discharge to expand; carrying out cleavage and oxidation of graphite to prepare peel graphite, where oxidized graphite is prepared by Hummer method, total pressure of buffer gas is 50-1000 torrs, and discharge current is 50-300 A; and dispersing the peeled graphite in surfactant solution by an ultrasonic method and removing the graphite which is not totally peeled and thick graphite film with large size by centrifuging at high speed to obtain high-quality graphene. USE - The method is useful for mass preparation of graphene. ADVANTAGE - The method: adapts parameter, which can be controlled easily; produces high yield of high quality graphene with good electrical conductivity and thermostability; and is mass preparation and cost efficient.