• 专利标题:   Catalytic reduction of graphene oxide by synthesizing graphene oxide, adding graphene oxide in deionized water, adding metal salt solution and ammonia borane, centrifuging, washing with hydrochloric acid and deionized water, and drying.
  • 专利号:   CN104649261-A
  • 发明人:   ZHANG Y, YAN C, ZHUO Q, DU Q
  • 专利权人:   UNIV JIANGSU SCI TECHNOLOGY
  • 国际专利分类:   C01B031/04
  • 专利详细信息:   CN104649261-A 27 May 2015 C01B-031/04 201558 Pages: 6 Chinese
  • 申请详细信息:   CN104649261-A CN10073801 11 Feb 2015
  • 优先权号:   CN10073801

▎ 摘  要

NOVELTY - Catalytic reduction of graphene oxide comprises synthesizing graphene oxide by Hummer method, adding graphene oxide in deionized water, ultrasonic dispersing; adding 0.1-1 mL 10-5 to 10-1 mol/L aqueous solution of metal salt to form brown flocculent suspension solution; adding 0.1-1 ml 1-100 mg/ml ammonia borane, suspending in solution to get black precipitates; and centrifuging black precipitates, washing with 0.1-10 ml 1-10% hydrochloric acid, washing for 3-6 times, black precipitate of metallic particles, washing with deionized water for 3-6 times and freeze-drying. USE - Method for catalytically reducing graphene oxide (claimed). ADVANTAGE - The method avoids hydration using hydrazine and its derivative with strong toxicity, volatility and corrosion property, and operates under mild reaction condition. DETAILED DESCRIPTION - Catalytic reduction of graphene oxide comprises synthesizing graphene oxide by Hummer method, adding 1 mg graphene oxide in 0.5-10 ml deionized water, ultrasonic dispersing at 50 W to get 0.01-2 mg/ml aqueous graphene oxide solution; adding 0.1-1 mL 10-5 to 10-1 mol/L aqueous solution of metal salt to form brown flocculent suspension solution; adding 0.1-1 ml 1-100 mg/ml ammonia borane, suspending in solution to get black precipitates; and centrifuging black precipitates, washing with 0.1-10 ml 1-10% hydrochloric acid, washing for 3-6 times, black precipitate of metallic particles, washing with deionized water for 3-6 times and freeze-drying.