• 专利标题:   Preparing core-shell cobalt sulfide-nitrogen-doped graphene oxide nano composite material comprises e.g. performing hydrothermal method of cobalt sulfide growth solution, and mixing core-shell cobalt sulfide nanoparticle.
  • 专利号:   CN106563471-A, CN106563471-B
  • 发明人:   QIU W, LI Y
  • 专利权人:   GUANGDONG IND TECH COLLEGE
  • 国际专利分类:   B01J027/043, C25B001/04, C25B011/06
  • 专利详细信息:   CN106563471-A 19 Apr 2017 B01J-027/043 201733 Pages: 12 Chinese
  • 申请详细信息:   CN106563471-A CN11036556 23 Nov 2016
  • 优先权号:   CN11036556

▎ 摘  要

NOVELTY - Preparing core-shell cobalt sulfide-nitrogen-doped graphene oxide nano composite material comprises e.g. (i) carrying out hydrothermal method of cobalt sulfide growth solution, (ii) mixing core-shell cobalt sulfide nanoparticle and aminopropyltriethoxysilane in solvent, and stirring, (iii) placing 3-aminopropyltrimethoxysilane-modified core-shell cobalt sulfide nanoparticle in nitrogen-doped graphene precursor fluid, performing hydrothermal method to obtain nitrogen-doped graphene-coated core-shell cobalt sulfide nanoparticles composite material. USE - The composite material is useful in field of hydrogen evolution (claimed). ADVANTAGE - The composite material has excellent mechanical flexibility, electro-catalysis property and redox catalytic activity, stability and exhibits low starting potential, low overpotential and high cycle stability. DETAILED DESCRIPTION - Preparing core-shell cobalt sulfide-nitrogen-doped graphene oxide nanocomposite material comprises (i) carrying out hydrothermal method of cobalt sulfide growth solution to obtain core-shell cobalt sulfide nanoparticle, (ii) mixing core-shell cobalt sulfide nanoparticle and aminopropyltriethoxysilane in solvent, and stirring to obtain aminopropyltriethoxysilane modified core-shell cobalt sulfide nanoparticle, (iii) placing 3-aminopropyltrimethoxysilane-modified core-shell cobalt sulfide nanoparticle in nitrogen-doped graphene precursor fluid, performing hydrothermal method to obtain nitrogen-doped graphene-coated core-shell cobalt sulfide nanoparticles composite material, where nitrogen-doped graphene precursor solution comprises graphene oxide, aqueous ammonia and sodium hydroxide. An INDEPENDENT CLAIM is also included for core-shell cobalt sulfide-nitrogen-doped graphene oxide nanocomposite material obtained by above method.