• 专利标题:   Producing graphene oxide powder, comprises e.g. oxidizing graphite to form oxidized graphite, mixing oxidized graphite with water-soluble polymer, and dispersing and peeling oxidized graphite through cation-phi interaction, and lyophilizing.
  • 专利号:   KR2018039456-A
  • 发明人:   JEONG S Y, LEE G W, SEO S H, JEONG H J, HAN J T
  • 专利权人:   KOREA ELECTROTECHNOLOGY RES INST
  • 国际专利分类:   C01B031/04, C09C001/44, C09C003/00
  • 专利详细信息:   KR2018039456-A 18 Apr 2018 C01B-031/04 201831 Pages: 13
  • 申请详细信息:   KR2018039456-A KR130785 10 Oct 2016
  • 优先权号:   KR130785

▎ 摘  要

NOVELTY - Producing graphene oxide powder, comprises (a) oxidizing graphite to form oxidized graphite, (b) mixing the oxidized graphite with water-soluble polymer, and dispersing and peeling the oxidized graphite through cation-phi interaction to form cation-reactive oxidized graphene dispersion solution, and (c) lyophilizing the cationic-reactive oxidative graphene dispersion solution to form solid oxide graphene having oxygen functional groups on its surface. USE - The method is useful for producing graphene oxide powder. ADVANTAGE - The method increases dispersion stability of graphene oxide through freeze drying of water-soluble polymer. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene oxide powder having oxygen functional group on surface comprising cationic-reactive oxidative graphene dispersion solution produced by mixing graphene oxide with water-soluble polymer, dispersing and peeling the graphene oxide through cation-phi interaction to form cation-reactive oxidized graphene dispersion solution, and lyophilizing.