▎ 摘　　要

NOVELTY - Preparation of composite carbon aerogel includes ultrasonically dispersing graphene oxide nanoribbons/carbon nanotube hybrid material in deionized water, adding water-soluble polyamide acid to obtain graphene oxide nanoribbon/carbon nanotube/polyamide acid solution, adding potassium hydroxide solution, rapidly stirring, and performing sol-gel process to obtain hydrogel; and freezing through refrigerator or liquid nitrogen, freeze-drying to obtain aerogel, thermally imidizing to obtain composite aerogel, subjecting to activation treatment, and high temperature carbonizing. USE - Method for preparation of composite carbon aerogel used as catalyst carrier material, adsorbing material and an electrode material for supercapacitor, lithium ion batteries and other energy devices (all claimed). ADVANTAGE - The method is easy to implement and environment-friendly, and has low cost. The composite carbon aerogel has large specific area, high porosity, and uniform pore size and distribution. DETAILED DESCRIPTION - Preparation of composite carbon aerogel comprises ultrasonically dispersing graphene oxide nanoribbons/carbon nanotube hybrid material in deionized water to obtain hybrid material dispersion, adding water-soluble polyamide acid to obtain graphene oxide nanoribbon/carbon nanotube/polyamide acid solution, adding potassium hydroxide solution, rapidly stirring, and performing sol-gel process to obtain hydrogel; and freezing through refrigerator or liquid nitrogen, freeze-drying to obtain aerogel, thermally imidizing to obtain composite aerogel, subjecting to activation treatment, and high temperature carbonizing.