▎ 摘 要
NOVELTY - A graphene is prepared by taking graphene oxide, adding potassium chlorate, oxidizing, putting in crucible, vacuum pumping, heating to 800 degrees C, introducing hydrogen and mixed inert gas for 2-3 seconds, stopping, heating at 1200 degrees C for 5-25 seconds, cooling, and taking out. USE - Method for preparing graphene (claimed).