• 专利标题:   Manufacture of graphene involves forming primary filter cake by reacting specified amount of benzene and anhydrous aluminum chloride, forming secondary filter cake and tertiary filter cake, and drying deionized tertiary filter cake.
  • 专利号:   CN103204496-A
  • 发明人:   DAI T, ZHOU P, ZHAO D
  • 专利权人:   DONGGUAN XIANGFENGHUA BATTERY MATERIALS
  • 国际专利分类:   C01B031/04
  • 专利详细信息:   CN103204496-A 17 Jul 2013 C01B-031/04 201377 Pages: 5 Chinese
  • 申请详细信息:   CN103204496-A CN10079168 12 Mar 2013
  • 优先权号:   CN10079168

▎ 摘  要

NOVELTY - A mixture of benzene, anhydrous aluminum chloride and tetra(triphenyl phosphine)palladium, having mass ratio of 1:0.1-0.5:0.001-0.005 is added with solvent and reacted at 100-200 degrees C for l-5 hours. The reacted product is cooled at room temperature and filtered to obtain a filter cake (A). The filter cake (A) is dispersed in ethanol solution to obtain filter cake (B). The filter cake (B) is dispersed in hydrochloric acid to obtain filter cake (C). The filter cake (C) is deionized and dried in vacuum at 50-80 degrees C for 8-12 hours to obtain graphene. USE - Manufacture of graphene (claimed). ADVANTAGE - The graphene is manufactured economically in short period of time, using reduced amount of catalyst. DETAILED DESCRIPTION - A mixture of benzene, anhydrous aluminum chloride and tetra(triphenyl phosphine)palladium, having mass ratio of 1:0.1-0.5:0.001-0.005 is taken in a reactor. A solvent is added into the reactor, stirred and reacted under nitrogen or inert gas atmosphere at 100-200 degrees C for 1-5 hours. The reacted product is cooled at room temperature and filtered to obtain a filter cake (A). The filter cake (A) is dispersed in ethanol solution and stirred for 0.5-1 hour to obtain filter cake (B). The filter cake (B) is then dispersed in hydrochloric acid and stirred for 0.5-1 hour to obtain filter cake (C). The filter cake (C) is washed with deionized water until the washing solution becomes neutral. The deionized filter cake (C) is dried in vacuum at 50-80 degrees C for 8-12 hours to obtain graphene.