• 专利标题:   Preparing functionalized reduced graphene comprises carrying out oxidation of graphite to obtain graphene oxide, annealing, thermally expanding, adding into deionized water with dispersant, treating, filtering, washing and drying.
  • 专利号:   CN107902641-A
  • 发明人:   MA J, LIU J, ZHU W, QIN W, LI W
  • 专利权人:   UNIV TAIYUAN TECHNOLOGY
  • 国际专利分类:   C01B032/184, C01B032/194, C08K003/04, C08K009/04, C08L039/06, C08L005/08
  • 专利详细信息:   CN107902641-A 13 Apr 2018 C01B-032/184 201831 Pages: 6 Chinese
  • 申请详细信息:   CN107902641-A CN10847041 19 Sep 2017
  • 优先权号:   CN10847041

▎ 摘  要

NOVELTY - Preparing functionalized reduced graphene comprises: (i) carrying out oxidation of graphite using Hummers method to obtain graphene oxide; (ii) adding graphene oxide into a quartz boat, placing the quartz boat at one end of the annealing furnace, annealing at 500-1000 degrees C under protective gas environment, moving the quartz boat to other end of the annealing furnace, thermally expanding the graphene oxide to obtain reduced graphene; and (iii) adding dispersant and reduced graphene into deionized water, ultrasonically treating, filtering, washing and drying. USE - The method is useful for preparing functionalized reduced graphene. DETAILED DESCRIPTION - Preparing functionalized reduced graphene comprises: (i) carrying out oxidation of graphite using Hummers method to obtain graphene oxide; (ii) adding graphene oxide into a quartz boat, placing the quartz boat at one end of the annealing furnace, annealing at 500-1000 degrees C under protective gas environment, moving the quartz boat to other end of the annealing furnace, continuing heating at 500-1000 degrees C for 5 seconds to 30 minutes, thermally expanding the graphene oxide to obtain reduced graphene; and (iii) adding dispersant and reduced graphene (both in a mass ratio of 1:100-5:1) into deionized water, ultrasonically treating or carrying out high-speed stirring and dispersing to obtain functionalized reduced graphene colloidal suspension, filtering the colloidal suspension, washing and drying.