• 专利标题:   Preparation of graphene oxide/carbon nanotube/cellulose composite gel for e.g. chemically modified electrode and sensor involves adding cellulose to ionic liquid, and stirring in oil bath pot to dissolve and obtain cellulose solution.
  • 专利号:   CN104086783-A, CN104086783-B
  • 发明人:   LI L, LIN Y, SUN L, ZHANG Y, WANG W
  • 专利权人:   UNIV HEILONGJIANG
  • 国际专利分类:   C08J003/02, C08K003/04, C08K007/24, C08L001/02
  • 专利详细信息:   CN104086783-A 08 Oct 2014 C08J-003/02 201503 Pages: 14 Chinese
  • 申请详细信息:   CN104086783-A CN10323335 08 Jul 2014
  • 优先权号:   CN10323335

▎ 摘  要

NOVELTY - Graphene oxide/carbon nanotube/cellulose composite gel is prepared by adding 0.5-10 pts. wt. cellulose to 100 pts. wt. ionic liquid, stirring in 70-100 degrees C oil bath pot for 8-12 hours to dissolve and obtain cellulose solution, separately adding graphene oxide and carbon nanotubes to solvent, sonicating obtain graphene oxide dispersion liquid and carbon nanotube dispersion liquid, adding dispersion liquids to cellulose solution, stirring at 80-100 degrees C for 12-24 hours to obtain cellulose mixture, pouring into mold, standing to cool, and soaking mold in deionized water tank for 6-12 hours. USE - Preparation of graphene oxide/carbon nanotube/cellulose composite gel for sensors, electromagnetic shielding material, chemically modified electrode, and supercapacitor. ADVANTAGE - Preparation of graphene oxide/carbon nanotube/cellulose composite gel is simple and environment-friendly and has low solvent loss, improved strength, high efficiency, excellent electrical and mechanical properties, and good stability. DETAILED DESCRIPTION - Graphene oxide/carbon nanotube/cellulose composite gel is prepared by adding 0.5-10 pts. wt. cellulose to 100 pts. wt. ionic liquid, stirring in 70-100 degrees C oil bath pot for 8-12 hours to dissolve and obtain cellulose solution, separately adding graphene oxide and carbon nanotubes to solvent, sonicating obtain graphene oxide dispersion liquid and carbon nanotube dispersion liquid, adding dispersion liquids to cellulose solution, stirring at 80-100 degrees C for 12-24 hours to obtain cellulose mixture, pouring into mold, standing to cool, soaking mold in deionized water tank for 6-12 hours to replace and remove ionic liquids, repeating replacement 3-5 times to obtain gel, and drying in freeze-dryer. DESCRIPTION OF DRAWING(S) - The drawing shows a scanning electron microscope (SEM) image of graphene oxide/carbon nanotube/cellulose composite gel.