• 专利标题:   Preparation of graphene-bonded silica stationary phase involves adding graphene oxide-bonded silica gel to aqueous solution of hydrazine hydrate, reacting, filtering and drying.
  • 专利号:   CN104759270-A
  • 发明人:   DONG S, WANG L, ZHAO L, ZHANG X
  • 专利权人:   LANZHOU CHEM PHYSICS INST CHINESE ACAD
  • 国际专利分类:   B01D015/08, B01J020/286, B01J020/30
  • 专利详细信息:   CN104759270-A 08 Jul 2015 B01J-020/286 201572 Chinese
  • 申请详细信息:   CN104759270-A CN10006353 07 Jan 2014
  • 优先权号:   CN10006353

▎ 摘  要

NOVELTY - Graphene oxide is dispersed to N,N'-dimethylformamide, and aminopropyl silica gel, N,N'-dicyclohexyl carbodiimide and 4-dimethylaminopyridine as catalyst are added, reacted at 45-50 degrees C under normal pressure, filtered and dried to obtain graphene oxide-bonded silica gel. The obtained graphene oxide-bonded silica gel is added to an aqueous solution of hydrazine hydrate, reacted at 90-100 degrees C, filtered and dried to obtain graphene-bonded silica stationary phase. USE - Preparation of graphene-bonded silica stationary phase (claimed). ADVANTAGE - The method efficiently provides graphene-bonded silica stationary phase having high stability, by simple method.