▎ 摘　　要

NOVELTY - Preparation of graphene paper comprises adding graphite oxide in solvent, preparing to concentration of 0.25-1 mg/ml graphite oxide solution, and ultrasonically treating to obtain uniformly dispersed graphene oxide suspension; placing into reaction kettle, sealing, heating, and pressurizing to obtain stable graphene suspension; filtering using microporous filter under vacuum, drying filter cake, and peeling off filtrate from the surface of microporous filter membrane; placing in an inert atmosphere, preheating to 200 degrees C for 5 minutes, heating to 500-1000 degrees C, and cooling for 0.5-2 hours. USE - Method for preparing graphene paper (claimed). ADVANTAGE - The method is easy, has high permeability and solubility of graphite and better dispersion, and avoids reduction of graphene.