• 专利标题:   Preparation of composite carbon aerogel used as, e.g. adsorbing material by dispersing graphene oxide nanoribbon/carbon nanotube hybrid material in deionized water, adding water-soluble polyamide acid, and performing sol-gel process.
  • 专利号:   CN105197909-A, CN105197909-B
  • 发明人:   GAO W, LIU T, ZHANG L, ZHANG Y, FAN W, ZUO L, LU H, GU H
  • 专利权人:   UNIV FUDAN
  • 国际专利分类:   B82Y030/00, C01B031/00, C01B031/02, C01B031/04, C01B032/05, C01B032/16, C01B032/184
  • 专利详细信息:   CN105197909-A 30 Dec 2015 C01B-031/00 201630 Pages: 12 English
  • 申请详细信息:   CN105197909-A CN10615214 24 Sep 2015
  • 优先权号:   CN10615214

▎ 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.