• 专利标题:   Control of electrical conductivity and thermal conductivity of graphene aerogel, involves dissolving molybdenum disulfide powder in isopropanol aqueous solution to prepare molybdenum disulfide solution, and ultrasonically processing.
  • 专利号:   CN107572510-A
  • 发明人:   GONG F, LIU X, XIA D, LI H, WANG W, DUAN C, WU M, XU Z, LIAO J
  • 专利权人:   UNIV CHINA ELECTRONIC SCI TECHNOLOGY
  • 国际专利分类:   C01B032/184
  • 专利详细信息:   CN107572510-A 12 Jan 2018 C01B-032/184 201811 Pages: 8 Chinese
  • 申请详细信息:   CN107572510-A CN11001268 24 Oct 2017
  • 优先权号:   CN11001268

▎ 摘  要

NOVELTY - The method of controlling electrical conductivity and thermal conductivity of graphene aerogel involves dissolving molybdenum disulfide powder in isopropanol aqueous solution to prepare molybdenum disulfide solution, ultrasonically processing, taking graphene oxide, mixing with deionized water to prepare graphene oxide solution, dispersing the graphene oxide solution, mixing with molybdenum disulfide solution, ultrasonically processing, adding ethylenediamine and PVC powder, stirring, placing into a hydrothermal reactor, hydrothermally reacting, and freeze-drying. USE - Method of controlling electrical conductivity and thermal conductivity of graphene aerogel. ADVANTAGE - The method enables control of electrical conductivity and thermal conductivity of graphene aerogel with aerogel conductivity decreased by 80-90% and thermal conductivity increased by 25-35%, and excellent mechanical strength. DETAILED DESCRIPTION - The method of controlling electrical conductivity and thermal conductivity of graphene aerogel involves (1) dissolving 15-25 mg molybdenum disulfide powder in 45 vol.% isopropanol aqueous solution to prepare 2-3 mg/ml molybdenum disulfide solution, ultrasonically processing for 0.5-1 hour, taking 60-400 mg graphene oxide, mixing with deionized water to prepare 3-4 mg/ml graphene oxide solution, ultrasonically dispersing the graphene oxide solution for 4-6 hours, where the solution becomes black suspension, mixing the molybdenum disulfide solution and the graphene oxide solution, and ultrasonically processing for 0.5-1 hour to uniformly disperse, (2) adding ethylenediamine and PVC powder to the uniformly dispersed solution, and stirring for 30-60 minutes to uniformly mix, and (3) placing the uniformly mixed solution into a hydrothermal reactor, hydrothermally reacting at 100-120 degrees C for 10-12 hours to obtain hydrogel with cork shape, and freeze-drying for 10-12 hours.