▎ 摘　　要

NOVELTY - Preparing graphene involves electrolyzing tetrachloroethylene in an electrolytic cell, where the electrolysis cell comprises cathode, anode, cathode liquid and anode liquid, separating cathode liquid and the anode liquid by a membrane, adding tetrachloroethylene to the cathode liquid, and carrying out electrolysis to obtain graphene. The cathode is copper-nickel-zinc alloy electrode, and anode is titanium-coated ruthenium inert electrode. USE - Method for preparing graphene for use in scientific and industrial sectors. ADVANTAGE - The method provides fast reaction speed, mild condition, high reaction efficiency, simple and controllable operation, and eco-friendly graphene. The method is capable of effectively simplifing the existing production process, further improve the economic benefit of the graphene production and improve the environment pollution problem.