▎ 摘　　要

NOVELTY - A graphene-carbon nanotube composite porous electrode material is prepared by using porous metal as base body; depositing first transition metal layer, and vacuum magnetic control sputtering; processing porous metal in vacuum furnace at 650-1000 degrees C, introducing hydrogen and argon gas, introducing carbon source gas, and reacting for 0.5-30 minutes; coating graphene layer; depositing second transition metal layer using chemical gas phase deposition; and processing porous metal in vacuum furnace. USE - Method for preparing graphene-carbon nanotube composite porous electrode material (claimed). ADVANTAGE - The method produces electrode material with light quality, high specific area, high conductivity, good stability, long use life, and good electrochemical performance. DETAILED DESCRIPTION - Preparing graphene-carbon nanotube composite porous electrode material comprises using porous metal as base body; depositing first transition metal layer, and vacuum magnetic control sputtering at 5x 10-2 Pa and 0.1-1 kW, such that an average thickness of the first transition metal layer is 5-2000 nm; processing porous metal in vacuum furnace at 650-1000 degrees C, introducing hydrogen and argon gas, preserving temperature for 10-45 minutes, continuing heating up to 800-1100 degrees C, introducing carbon source gas, and reacting for 0.5-30 minutes; coating graphene layer; depositing second transition metal layer using chemical gas phase deposition; and processing porous metal in vacuum furnace at 650-900 degrees C, heating in the presence of argon gas as protective gas, reacting for 10-100 minutes, stopping inletting of carbon source gas, and cooling to room temperature.