▎ 摘　　要

NOVELTY - Preparation of graphene gel comprises adding graphite oxide to solvent, ultrasonically dispersing to obtain 2-10 mg ml graphene oxide suspension, placing into graphite oxide reactor, sealing, and heating to 150-200 degrees C for 2-10 hours to obtain graphene wet gel; and placing into autoclave, reacting to 200-400 degrees C at 5-25 MPa for 10-60 seconds, slowly taking out to release high-pressure hot steam, and drying. USE - Method for preparation of graphene gel (claimed). ADVANTAGE - The method utilizes supercritical solvent, eliminates the presence of solvent capillary force, and avoids the collapse of gel structure.