• 专利标题:   ZIF-8 pyrolysis porous carbon-graphene composite material useful as electrode material for supercapacitor, has graphene ZIF-8 pyrolysis porous carbon surface.
  • 专利号:   CN106783197-A, CN106783197-B
  • 发明人:   LIU T, ZHAO Z, ZHANG C, LIU S
  • 专利权人:   UNIV DONGHUA, UNIV DONGHUA
  • 国际专利分类:   C01B032/05, C01B032/184, H01G011/24, H01G011/32, H01G011/36, H01G011/86
  • 专利详细信息:   CN106783197-A 31 May 2017 H01G-011/24 201749 Pages: 8 Chinese
  • 申请详细信息:   CN106783197-A CN11008324 16 Nov 2016
  • 优先权号:   CN11008324

▎ 摘  要

NOVELTY - A ZIF-8 pyrolysis porous carbon-graphene composite material has graphene ZIF-8 pyrolysis porous carbon surface. USE - The ZIF-8 pyrolysis porous carbon-graphene composite material is useful as electrode material for supercapacitor (claimed). ADVANTAGE - The ZIF-8 pyrolysis porous carbon-graphene composite material is inexpensive and prepared by simple method, and has high specific surface area and excellent stable chemical property, current density of 1 A/g and specific capacitance of 300 F/g. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of ZIF-8 pyrolysis porous carbon-graphene composite material, which involves mixing zinc nitrate hexahydrate and 2-methylimidazole, dissolving the mixture in solvent, leaving for 1-2 hours to obtain milk-like solution, centrifuging, washing and vacuum drying to obtain ZIF-8 crystal, mixing ZIF-8 crystal and potassium citrate in mass ratio of 1:5-1:40, mixing, grinding, carbonizing at high temperature of 800 degrees C for 2 hours, washing and drying.