▎ 摘　　要

NOVELTY - Preparing three dimensional graphene foam, comprises: (a) processing graphene oxide solution using Hummers method to obtain pure exfoliated graphite; (b) taking luteinizing graphene oxide solution and then diluting with distilled water and pyrrole, and introducing the solution into reacting stillage to react; (c) freezing and drying the foam-like three dimensional graphene to obtain dried foam-like three-dimensional graphene; and (d) introducing the graphene in a tubular furnace for drying and annealing for 3 hours. USE - The method is useful for preparing three dimensional graphene foam (claimed). ADVANTAGE - The method allows simple preparation of three dimensional graphene foam with high yield, good quality and ultra-light and ultra high absorption performance. DETAILED DESCRIPTION - Preparing three dimensional graphene foam, comprises: (a) processing 2-20 mg.ml-1 of graphene oxide solution using Hummers method to obtain pure exfoliated graphite; (b) taking 2-20 mg.ml-1 of luteinizing graphene oxide solution and then diluting with distilled water (95 vol.%) and pyrrole (5 vol.%), making the concentration to 0.3-0.4 mg/ml, and introducing the solution into reacting stillage to react; (c) freezing and drying the foam-like three dimensional graphene to obtain dried foam-like three-dimensional graphene; and (d) introducing the graphene in a tubular furnace for drying at 1000 degrees C and annealing for 3 hours to form three-dimensional foam-like graphite with the density of 2.1 plus minus 3 mg.cm-3.