• 专利标题:   Preparing gas diffusion graphene electrode used for processing organic matter containing waste water, involves reacting graphite crystalline flake, sodium nitrate and concentrated sulfuric acid on ice water bath.
  • 专利号:   CN105836855-A, CN105836855-B
  • 发明人:   CHEN W, WANG Y, JIANG D, LIU G
  • 专利权人:   UNIV XIAN TECHNOLOGICAL, UNIV XIAN TECHNOLOGICAL
  • 国际专利分类:   C02F001/461, C02F001/72, C02F101/30
  • 专利详细信息:   CN105836855-A 10 Aug 2016 C02F-001/461 201704 Pages: 8 Chinese
  • 申请详细信息:   CN105836855-A CN10414132 13 Jun 2016
  • 优先权号:   CN10414132

▎ 摘  要

NOVELTY - Preparing gas diffusion graphene electrode involves reacting graphite crystalline flake, sodium nitrate and concentrated sulfuric acid in ratio of 3.0g:1.5-2g:160mL on ice water bath for 1 hours. The reaction mixture is reacted with 9.0437g potassium permagnate for 3 hours. The reaction mixture is heated at 40 degrees C for 1.5 hours. The heated mixture is stirred with 160mL distilled water for 1 hours at 48-52 to obtain mixed solution that is stirred at 48-52 degrees C with 30% hhydrogen peroxide (30mL) and 175mL distilled water for 3 hours. The stirred material is cooled and then filtered. USE - Method for preparing gas diffusion graphene electrode (claimed). ADVANTAGE - The method enables to prepare gas diffusion graphene electrode that ensures strong oxidation ability. DETAILED DESCRIPTION - Preparing gas diffusion graphene electrode involves reacting graphite crystalline flake, sodium nitrate and concentrated sulfuric acid in ratio of 3.0g:1.5-2g:160mL on ice water bath for 1 hours. The reaction mixture is reacted with 9.0437g potassium permagnate for 3 hours. The reaction mixture is heated at 40 degrees C for 1.5 hours. The heated mixture is stirred with 160mL distilled water for 1 hours at 48-52 to obtain mixed solution that is stirred at 48-52 degrees C with 30% hhydrogen peroxide (30mL) and 175mL distilled water for 3 hours. The stirred material is cooled and then filtered. The filtered material is washed with 30% hydrochloric acid and distilled water to obtain residue of pH 7. The filtered residue of dried at 40 degrees C in vacuum to obtain graphite alkene oxide. The 100.0mg graphene oxide is dispersed in water ultrasonically in 100mL water to obtain dispersion. The pH of dispersion is regulated to 10 using 28% ammonia water. The dispersion is reacted with 0.2mL hydration hydrazine at 90 degrees C for 2 hours to obtain graphene dispersion. The 0.8g graphite and 160mL 3% alcohol is stirred at room temperature ultrasonically for 10 minutes. The 10-30mL graphene dispersion liquid and 0.2g polytetrafluoroethylene are stirred at room temperature ultrasonically for 15 minutes at on water bath at 80 degrees C to obtain paste that is cooled and molded using nickel screen. The molded material is heated in muffle furnace at 300 degrees C for 1.5 hours to obtain product.