• 专利标题:   Preparation of modified graphene aqueous dispersion involves reacting natural graphite and oxidant, preparing graphene oxide solution, adding surfactant and reducing agent, reacting, filtering, adding distilled water, and dispersing.
  • 专利号:   CN104211053-A
  • 发明人:   CUI C, HOU S, SUN M, WANG Y
  • 专利权人:   JINING LEADER NANO TECHNOLOGY CO LTD
  • 国际专利分类:   C01B031/04
  • 专利详细信息:   CN104211053-A 17 Dec 2014 C01B-031/04 201514 Pages: 4 Chinese
  • 申请详细信息:   CN104211053-A CN10445881 04 Sep 2014
  • 优先权号:   CN10445881

▎ 摘  要

NOVELTY - Natural graphite is reacted with strong oxidant, to obtain graphene oxide slurry. The obtained slurry is washed to neutral, dried, and graphene oxide solution having concentration of 0.005-0.01 g/mL is prepared. Then, surfactant is added to the obtained solution, magnetically stirred, mixed, reducing agent is added, reacted in an oil bath with magnetic stirring and filtered, to obtain modified graphene. Distilled water is added to the resultant product and ultrasonically-dispersed under power of 50-150 W for 2-6 hours, to obtain modified graphene aqueous dispersion. USE - Preparation of modified graphene aqueous dispersion (claimed). ADVANTAGE - The method enables simple, economical and easy preparation of modified graphene aqueous dispersion having high stability and dispersibility, with high yield.