▎ 摘　　要

NOVELTY - Preparation of three-dimensional porous grapheme involves preparing graphene oxide aqueous solution through modified Hummers method, mixing the prepared graphene oxide aqueous solution and toluene-soluble asphalt, performing hydrothermal reaction at 160-240 degrees C for 8-15 hours, cooling the resultant reaction mixture, washing, drying, performing heat treatment on the resultant dried material under protection of inert gas at 900-1100 degrees C for 0.5-3 hours, and cooling. USE - Preparation of three-dimensional porous graphene (claimed). ADVANTAGE - The method provides three-dimensional porous graphene having excellent conductivity, by a simple process in a short period of time.