• 专利标题:   Preparing graphene microsphere by inverse emulsion method useful for forming and maintaining high-strength porous spheres comprises adjusting graphene oxide solution pH, preparing oil phase composition system and adding diamine composition.
  • 专利号:   CN110642246-A
  • 发明人:   HUANG A, XU R, BAI Y, ZHANG W, GAO L, CHEN X, LI Y, LI L, DUAN H, YANG S, LIU Y, LIU Q, LIU X, WANG X, LIU W
  • 专利权人:   PETROCHINA CO LTD
  • 国际专利分类:   B01J021/18, B01J035/02, B01J035/08, B01J035/10, C01B032/198
  • 专利详细信息:   CN110642246-A 03 Jan 2020 C01B-032/198 202008 Pages: 11 Chinese
  • 申请详细信息:   CN110642246-A CN10672649 26 Jun 2018
  • 优先权号:   CN10672649

▎ 摘  要

NOVELTY - Preparing graphene microsphere by inverse emulsion method comprises using single-layer graphene oxide as raw material and includes (1) adjusting the pH of aqueous graphene oxide solution with a alkali compound to 9-11 in the aqueous system, (2) preparing oil phase composition system of liquid paraffin and carbon tetrachloride in a volume ratio of 6:1-15:1 and (3) adding surfactant to the oil phase composition system, adding the aqueous system in step (1) in a volume ratio 2:1-8:1, adding diamine composition, stirring and reacting at 40-100 degrees C for 3-8 hours to obtain graphene oxide microspheres. USE - The microsphere is useful for forming and maintaining high-strength porous spheres. ADVANTAGE - The microsphere: is assembled together by hydrogen bond or van der Waal force thus has a uniform and controllable size distribution; and has sufficient strength and porous structure.