• 专利标题:   Preparation of metal phthalocyanine-functionalized graphene-supported platinum catalyst used for direct-methanol fuel cell, involves uniformly-dispersing graphene and obtained platinum catalyst, and adding sodium borohydride solution.
  • 专利号:   CN102935382-A, CN102935382-B
  • 发明人:   FAN Y, SHEN X, ZHONG J
  • 专利权人:   UNIV GUANGXI NORMAL
  • 国际专利分类:   B01J031/22, H01M004/92
  • 专利详细信息:   CN102935382-A 20 Feb 2013 B01J-031/22 201344 Pages: 6 Chinese
  • 申请详细信息:   CN102935382-A CN10459563 15 Nov 2012
  • 优先权号:   CN10459563

▎ 摘  要

NOVELTY - Graphene and obtained copper phthalocyanine-functionalized graphene-containing platinum catalyst in weight ratio of 1:4 are uniformly-dispersed with addition of 2 mM chloroplatinic acid solution, and pH value is adjusted to 10.5. 10 mg.mL-1 Sodium borohydride solution is added, and subjected to hydrothermal reaction, centrifugation, washing and vacuum-drying, to obtain nickel phthalocyanine-functionalized graphene-supported platinum catalyst. USE - Preparation of metal phthalocyanine-functionalized graphene-supported platinum catalyst used for direct-methanol fuel cell. ADVANTAGE - The method enables metal phthalocyanine-functionalized graphene-supported platinum catalyst having small size, large electrochemical surface area, and excellent fine dispersibility and carbon-monoxide-toxication resistance. DETAILED DESCRIPTION - 0.5-10 pts. wt. Copper phthalocyanine or nickel phthalocyanine is added to 8 mL container containing distilled water and 3 pts. wt. graphene, processed at room temperature, and ultrasonic-dispersed for 6 hours, to form copper phthalocyanine-graphene-nickel phthalocyanine composite-material dispersed stable suspension, and to obtain direct-methanol fuel-cell anode catalyst. Graphene and copper phthalocyanine in weight ratio of 1:4 are added to composite-material dispersed stable suspension and 2 mM chloroplatinic acid solution is added, and the pH value is adjusted to 10.5. The solution is ultrasound-treated, with slow addition of 10 mg.mL-1 sodium borohydride solution and subjected to ultrasonic treatment at room temperature for 1-8 hours. The product is centrifuged, washed and vacuum-dried, to obtain copper phthalocyanine-functionalized graphene-containing platinum catalyst. Graphene and copper phthalocyanine-functionalized graphene-containing platinum catalyst in weight ratio of 1:4 are uniformly-dispersed with addition of 2 mM chloroplatinic acid solution, and pH value is adjusted to 10.5. 10 mg.mL-1 Sodium borohydride solution is added, and subjected to hydrothermal reaction at 80-280 degrees C for 3-30 hours, centrifugation, washing and vacuum-drying, to obtain nickel phthalocyanine-functionalized graphene-supported platinum catalyst.