• 专利标题:   Preparation of single layer tungsten disulfide-graphene composite nanomaterial comprises dropping hydrazine hydrate at specified dropping volume in water mixture of graphene oxide, surface active agent and thio-ammonium meta-tungstate.
  • 专利号:   CN102694172-A, CN102694172-B
  • 发明人:   CHEN W, MA L, HUANG G, WANG Z
  • 专利权人:   UNIV ZHEJIANG
  • 国际专利分类:   B01J027/047, B01J032/00, B82Y040/00, C10M103/00, C10N050/08, H01M004/583
  • 专利详细信息:   CN102694172-A 26 Sep 2012 H01M-004/583 201324 Pages: 9 Chinese
  • 申请详细信息:   CN102694172-A CN10187881 08 Jun 2012
  • 优先权号:   CN10187881

▎ 摘  要

NOVELTY - Preparation of single layer tungsten disulfide-graphene composite nanomaterial comprises dispersing ultrasonically graphene oxide in deionized water, adding cationic surface active agent and stirring, adding with thio-ammonium meta-tungstate, stirring, dropping 85% hydrazine hydrate at dropping volume X, where X/mL being equivalent to Yx Z/mmol, Y being equivalent to 1.24-2.98 and Z representing amount of thio-ammonium meta-tungstate, stirring continuously, heating to 95 degrees C and refluxing, centrifuging to separate formed solids, washing with deionized water, drying in vacuum and heat treating. USE - Method for preparing single layer tungsten disulfide-graphene composite nanomaterial (claimed). ADVANTAGE - The method is simple and easy for industrial-scale mass production. DETAILED DESCRIPTION - Preparation of single layer tungsten disulfide-graphene composite nanomaterial comprises dispersing ultrasonically graphene oxide (26.8-60.3 mmol/L) in deionized water, adding cationic surface active agent (0.01-0.05 M) and stirring, adding with thio-ammonium meta-tungstate at mass ratio of 1:1-1:4 to graphene oxide, stirring, dropping 85% hydrazine hydrate at dropping volume X, where X/mL being equivalent to Yx Z/mmol, Y being equivalent to 1.24-2.98 and Z representing amount of thio-ammonium meta-tungstate, stirring continuously, heating to 95 degrees C and refluxing for 5-9 hours, centrifuging to separate formed solids, washing with deionized water, drying in vacuum at 100 degrees C, and heat treating at 800 degrees C for 2 hours under mixed atmosphere of nitrogen and 10 vol.% hydrogen.