• 专利标题:   Preparation of porous graphene involves adding graphene oxide solution with ammonium carbonate solution, uniformly mixing to obtain graphene oxide and mixed solution of ammonium carbonate, and evaporating solvent from mixed solution.
  • 专利号:   CN102757036-A, CN102757036-B
  • 发明人:   WANG Y, ZHOU M, ZHONG L
  • 专利权人:   HAIYANGWANG LIGHTING TECHNOLOGY CO LTD, OCEANS KING LIGHTING SCI TECHNOLOGY CO, SHENZHEN OCEANS KING LIGHTING SCI TECH
  • 国际专利分类:   B82Y040/00, C01B031/04, H01G009/042
  • 专利详细信息:   CN102757036-A 31 Oct 2012 C01B-031/04 201330 Pages: 9 Chinese
  • 申请详细信息:   CN102757036-A CN10105427 26 Apr 2011
  • 优先权号:   CN10105427

▎ 摘  要

NOVELTY - Preparation of porous graphene comprises oxidizing graphite raw material to prepare graphite oxide; dissolving graphite oxide in solvent ultrasonic dispersion to obtain 0.1-2 mg/ml graphene oxide solution; adding graphene oxide solution with 10-50 mass% ammonium carbonate solution; stirring and uniformly mixing to obtain graphene oxide and mixed solution of ammonium carbonate; evaporating solvent from mixed solution to obtain graphene oxide and ammonium carbonate solid mixture; and calcining solid mixture in oxygen free environment to obtain porous graphene. USE - Preparation of porous graphene. ADVANTAGE - The method has simple technique and has low cost and suitable for large-scale production. It can completely decompose ammonium carbonate into gas during calcination to obtain porous graphene product free of impurities. DETAILED DESCRIPTION - Preparation of porous graphene comprises oxidizing graphite raw material to prepare graphite oxide; dissolving graphite oxide in solvent ultrasonic dispersion to obtain 0.1-2 mg/ml graphene oxide solution; adding graphene oxide solution with 10-50 mass% ammonium carbonate solution; stirring and uniformly mixing to obtain graphene oxide and mixed solution of ammonium carbonate, in which volume ratio of graphene oxide solution with ammonium carbonate solution is (8-12):1; evaporating solvent from mixed solution to obtain graphene oxide and ammonium carbonate solid mixture; and calcining solid mixture in oxygen free environment to obtain porous graphene. DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of a process for preparing porous graphene (Drawing includes non-English language text).