• 专利标题:   Preparing graphene aerogel by mixing graphene oxide dispersion liquid with amine compound, carrying out irradiation reaction, reacting mixture to obtain amino modified graphene hydrogel, and freeze-drying using supercritical carbon dioxide.
  • 专利号:   CN104250005-A, CN104250005-B
  • 发明人:   LI J, LI L, ZHANG B
  • 专利权人:   SHANGHAI INST APPLIED PHYSICS CHINESE AC
  • 国际专利分类:   C01B031/04
  • 专利详细信息:   CN104250005-A 31 Dec 2014 C01B-031/04 201531 Pages: 11 Chinese
  • 申请详细信息:   CN104250005-A CN10461586 11 Sep 2014
  • 优先权号:   CN10461586

▎ 摘  要

NOVELTY - Preparing graphene aerogel comprises adding a graphene oxide dispersion liquid and an amine compound into a reaction container, uniformly mixing to obtain a mixture of oxidized graphene, where the amine compound is diethylamine, ethylenediamine, propylenediamine, butylene diamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, polyallylamine and/or N,N'-bis(2-aminoethyl)-1,3-propanediamine, carrying out irradiation reaction, reacting the mixture to obtain an amino modified graphene hydrogel, freeze-drying, and drying using supercritical carbon dioxide. USE - The method is useful for preparing graphene aerogel, which is useful for absorbing an organic solvent (all claimed). ADVANTAGE - The method simply prepares the graphene aerogel in an eco-friendly manner. DETAILED DESCRIPTION - Preparing graphene aerogel comprises adding a graphene oxide dispersion liquid and an amine compound into a reaction container, uniformly mixing to obtain a mixture of oxidized graphene, where the amine compound is diethylamine, ethylenediamine, propylenediamine, butylene diamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, polyallylamine and/or N,N'-bis(2-aminoethyl)-1,3-propanediamine, carrying out irradiation reaction under anaerobic condition, reacting the mixture to obtain an amino modified graphene hydrogel, freeze-drying the amino modified graphene hydrogel, and drying using supercritical carbon dioxide. An INDEPENDENT CLAIM is included for the graphene aerogel prepared by the above method.