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  • 专利标题:   Manufacture of graphene balls involves preparing dispersion comprising graphene oxide, monosaccharide to polysaccharide reducing agent and specified amount of aqueous ammonia, and spray-drying resultant dispersion.
  • 专利号:   KR1676024-B1, WO2017209380-A1, CN107445152-A, CN107445152-B, US2019112194-A1
  • 发明人:   JANG H D, CHANG H K, CHOI J H, JANG H, CHANG H, CHOI J, ZHANG X
  • 专利权人:   KIGAM KOREA INST GEOSCIENCE MINERAL, KOREA INST GEOLOGY MINING MATERIALS, KIGAM KOREA INST GEOSCIENCE MINERAL
  • 国际专利分类:   C01B031/02, C07H003/02, C01B032/16, C01B032/194, B01J002/04, C01B032/184, C01B032/198
  • 专利详细信息:   KR1676024-B1 15 Nov 2016 C01B-031/02 201683 Pages: 13
  • 申请详细信息:   KR1676024-B1 KR067858 01 Jun 2016
  • 优先权号:   KR067858

▎ 摘　　要

NOVELTY - Manufacture of graphene balls involves preparing a dispersion comprising graphene oxide, a monosaccharide to polysaccharide reducing agent and 1-10 wt.% aqueous ammonia with concentration of 25-30%, spray-drying the dispersion, and obtaining graphene balls having sphericity which is a ratio of longest diameter of graphene balls with respect to shortest diameter of graphene balls of 1-1.5. USE - Manufacture of graphene balls (claimed). ADVANTAGE - The method enables manufacture of graphene balls having uniform size, spherical shape and excellent physical and chemical properties.