• 专利标题:   Preparing dispersion of graphene particles or flakes, useful e.g. in electronics, comprises supplying a carbon-based material, dispersing the material in an aqueous liquid, heating the dispersion and separating the graphene dispersion.
  • 专利号:   FR2940965-A1, FR2940965-B1
  • 发明人:   BEGIN D, ERSEN O, JANOWSKA I, LEDOUX M J, PHAM H C
  • 专利权人:   CENT NAT RECH SCI, UNIV STRASBOURG PASTEUR LOUIS
  • 国际专利分类:   B82B003/00, C01B031/04
  • 专利详细信息:   FR2940965-A1 16 Jul 2010 C01B-031/04 201050 Pages: 30 French
  • 申请详细信息:   FR2940965-A1 FR000100 12 Jan 2009
  • 优先权号:   FR000100

▎ 摘  要

NOVELTY - Preparing a dispersion of graphene particles or flakes, comprises: (a) supplying a carbon-based material; (b) dispersing the material in an aqueous or organic liquid to obtain a dispersion; (c) microwave heating the dispersion to obtain a dispersion containing graphene particles or flakes and carbon raw material; and (d) separating the graphene dispersion from carbon-raw material to obtain a dispersion of graphene particles or flakes. USE - The process is useful for preparing graphene particles or flakes dispersion, which is useful in composite conductive polymers, photovoltaics, catalysis and photocatalysis, and gas detection systems and electronics. ADVANTAGE - The process: is very easy to industrialize and is cost-effective; and utilizes known and simple techniques. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a system comprising the dispersion of graphene particles or flakes obtained by the method deposited on a substrate.