▎ 摘　　要

NOVELTY - A graphene material with porous structure has multilayer graphene sheet thickness of 5-10 nm, with uniformly distributed surface holes, aperture of 30-50 nm, and hole edge having hydroxyl group. USE - Graphene material with porous structure used in catalyst, gas separation and super capacitor. ADVANTAGE - The material is simple and easy to produce, has low cost, and is safe and environment-friendly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing the porous graphene material comprising taking a certain amount of surface active agent to dissolve under ultrasonic condition and obtaining surfactant aqueous solution, adding sodium hydroxide in the solution, ultrasonically dispersing to obtain graphene uniform suspension, and performing hydrothermal treatment at 180 degrees C for 2 hours.