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  • 专利标题:   Preparation of graphene aerogel by preparing polyvinyl alcohol aqueous solution containing graphene oxide, freezing, freeze-drying, performing high-temperature reduction under mixed gas atmosphere of argon and hydrogen, and burning.
  • 专利号:   CN104843676-A, CN104843676-B
  • 发明人:   ZHANG Y
  • 专利权人:   BEIQI FOTON MOTOR CO LTD, BEIQI FOTON MOTOR CO LTD
  • 国际专利分类:   C01B031/04, C01B032/184
  • 专利详细信息:   CN104843676-A 19 Aug 2015 C01B-031/04 201602 Pages: 8 Chinese
  • 申请详细信息:   CN104843676-A CN10724585 03 Dec 2014
  • 优先权号:   CN10724585

▎ 摘　　要

NOVELTY - Preparation of graphene aerogel comprises preparing polyvinyl alcohol aqueous solution containing graphene oxide, obtaining graphene dispersion liquid with concentration of 1-10 mg/cm3, freezing at not greater than - 196 degrees C to obtain frozen sample, freeze-drying to obtain freeze-dried sample, performing high-temperature reduction at 350-450 degrees C for 2-3 hours under mixed gas atmosphere of argon and hydrogen, and burning at 900-1100 degrees C for 2-3 hours. USE - Method for preparing graphene aerogel (claimed). ADVANTAGE - The aerogel has stable and uniform structure.