▎ 摘　　要

NOVELTY - Preparation of three-dimensional graphene involves preparing three-dimensional porous metal catalyst template through high-temperature reduction process using transition metal elemental substance and/or compound-containing transition metal elements as raw materials, growing the three-dimensional graphene using the obtained three-dimensional porous metal catalyst template by performing chemical vapor phase deposition method, and obtaining three-dimensional graphene with catalyst framework. USE - Preparation of three-dimensional graphene used for water treatment, biomedicine, energy generation, conversion and energy accumulation devices, sensor, heat conduction and dissipation material, antistatic material, thermal-conductive material, electromagnetic-shielding material, microwave-absorbing material and catalyst. ADVANTAGE - The method economically provides three-dimensional graphene having high quality and density, by a simple process in a short period of time.