▎ 摘　　要

NOVELTY - Preparation of graphene/carbon nanotube two-dimensional layered composite electrode material involves adding polymerization inhibitor nickel acetate and urea, carrying out thermal expansion, vacuumizing to open the sheet layer structure of graphene paper, and depositing carbon nanotubes in the opened interlayer structure through vapor deposition. USE - Preparation of graphene/carbon nanotube two-dimensional layered composite electrode material for supercapacitor. ADVANTAGE - The prepared electrode material has high specific surface area, pore structure and excellent capacitance performance.