• 专利标题:   Synthesis of composite electrode for supercapacitor, involves mixing graphene/nickel oxide-poly(aniline-aminophenol) composite material and deionized water, applying obtained dispersion on surface of glassy carbon electrode, and drying.
  • 专利号:   CN105047422-A
  • 发明人:   KONG Y, TANG B
  • 专利权人:   UNIV CHANGZHOU
  • 国际专利分类:   H01G011/30, H01G011/36, H01G011/46, H01G011/48, H01G011/86
  • 专利详细信息:   CN105047422-A 11 Nov 2015 H01G-011/30 201633 Pages: 10 Chinese
  • 申请详细信息:   CN105047422-A CN10355186 24 Jun 2015
  • 优先权号:   CN10355186

▎ 摘  要

NOVELTY - Synthesis of graphene oxide/nickel oxide-poly(aniline-aminophenol) composite electrode involves adding graphene/nickel oxide to sulfuric acid solution, ultrasonically vibrating, adding aniline and m-aminophenol, stirring, adding ammonium persulfate, reacting, filtering, washing the filtrate, drying, ultrasonically vibrating obtained composite material and deionized water, applying obtained dispersion on the surface of a glassy carbon electrode, air-drying at room temperature, and applying Nafion (RTM: perfluorinated resin solution) on the surface of dried product. USE - Synthesis of graphene oxide/nickel oxide-poly(aniline-aminophenol) composite electrode used for supercapacitor. ADVANTAGE - The method enables synthesis of graphene oxide/nickel oxide-poly(aniline-aminophenol) composite electrode with high conductivity, capacitive performance and cycle stability, and low electrode resistance. DETAILED DESCRIPTION - Synthesis of graphene oxide/nickel oxide-poly(aniline-aminophenol) composite electrode involves adding 30-150 mg graphene/nickel oxide to 0.5-1.5 mol/L sulfuric acid solution (20-40 mL), ultrasonically vibrating, adding aniline and m-aminophenol, uniformly stirring, adding 0.2 mol/L ammonium persulfate (30mL) as oxidant, reacting at 0-5 degrees C for 10-14 hours in an ice bath, filtering, washing the filtrate with ethanol and deionized water until the filtrate is colorless, drying obtained composite material, ultrasonically vibrating 30-50 mg composite material and 1-3 mL deionized water, applying 8-12 mu L obtained dispersion on the surface of a glassy carbon electrode, air-drying at room temperature, and applying 8-12 mu L Nafion (RTM: perfluorinated resin solution) on the surface of dried product. The graphene/nickel oxide is prepared by dissolving predetermined amount of nickel nitrate hexahydrate and urea in deionized water, adding 30 mL graphene oxide dispersion with different concentration from 0-4 mg/mL, stirring for 0-2 hours, adding resultant mixture to a reactor, placing the reactor in a muffle furnace, heating at 130-150 degrees C for 14-18 hours, naturally cooling reaction product to room temperature, washing with ethanol and water for 2-4 times, drying, placing dried product in a tube furnace, heating at 350-450 degrees C for 3-5 hours, and pulverizing.