• 专利标题:   Preparation of graphene by microwave expansion by mixing graphite raw material with intercalation agent, performing acid intercalation, adding strong alkali solution until neutral, microwave-heating in oven, and drying into powder.
  • 专利号:   CN108622887-A
  • 发明人:   SHAO G, ZHANG P, ZHANG S
  • 专利权人:   ZHENGZHOU XINSHIJI MATERIALS GENOMICS
  • 国际专利分类:   C01B032/19
  • 专利详细信息:   CN108622887-A 09 Oct 2018 C01B-032/19 201877 Pages: 12 Chinese
  • 申请详细信息:   CN108622887-A CN10161814 17 Mar 2017
  • 优先权号:   CN10161814

▎ 摘  要

NOVELTY - Preparation of graphene by microwave expansion comprises mixing graphite raw material with intercalation agent, performing acid intercalation to obtain primary intercalated graphite slurry, adding strong alkali solution with hydroxide ion concentration of 0.1-8 mol/L until system is neutral to obtain secondary intercalated graphite slurry, microwave-heating in oven at 400-1000 degrees C for 5-300 seconds, and drying to obtain three-dimensional graphene powder. USE - Method for preparing graphene by microwave expansion. ADVANTAGE - The method has rapid microwave-heating to achieve high-efficiency layering of graphite, and prepares three-dimensional graphene powder with ultra-thin graphene sheet cluster.