• 专利标题:   Large-scale production of graphene involves applying intercalating agent for raw materials to obtain intercalated graphite, filtering, dispersing in strong aqueous alkaline solution, carrying out ultrasonic treatment and spray-drying.
  • 专利号:   CN103910354-A, CN103910354-B
  • 发明人:   DONG L, LIN S, LU H
  • 专利权人:   UNIV FUDAN, ANHUI BETTER ADVANCED MATERIALS TECHNOLO
  • 国际专利分类:   C01B031/04
  • 专利详细信息:   CN103910354-A 09 Jul 2014 C01B-031/04 201465 Pages: 20 Chinese
  • 申请详细信息:   CN103910354-A CN10111450 25 Mar 2014
  • 优先权号:   CN10111450

▎ 摘  要

NOVELTY - Large-scale production of graphene comprises applying intercalating agent for raw materials to obtain intercalated graphite, filtering to remove excess intercalating agent, dispersing in 5-1000 times the volume of strong aqueous alkaline solution with pH value of greater than or equal to 10, carrying out ultrasonic treatment, concentrating by centrifugation to obtain aqueous graphene paste, washing with water and freeze-or spray-drying to obtain high quality graphene powder. USE - Method for carrying out large-scale production of graphene (claimed). ADVANTAGE - The product has long-term storage. The method is simple, energy-saving, cost-saving and environment-friendly and has high production efficiency.