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  • 专利标题:   Manufacture of graphene involves ultrasonically dispersing graphite oxide in water, filtering, heating graphene oxide under protective gas atmosphere, maintaining at specified temperature, cooling and annealing.
  • 专利号:   CN103449417-A, CN103449417-B
  • 发明人:   WANG Y, ZHONG H, ZHOU M
  • 专利权人:   OCEAN S KING LIGHTING SCI TECHNOLOGY, SHENZHEN OCEAN S KING LIGHTING SCI TECH, OCEANS KING LIGHTING SCI TECHNOLOGY CO, SHENZHEN OCEANS KING LIGHTING ENG CO LTD
  • 国际专利分类:   C01B031/04
  • 专利详细信息:   CN103449417-A 18 Dec 2013 C01B-031/04 201415 Pages: 9 Chinese
  • 申请详细信息:   CN103449417-A CN10176658 31 May 2012
  • 优先权号:   CN10176658

▎ 摘　　要

NOVELTY - Ultrasonic dispersion of graphite oxide is performed in water to form graphene oxide suspension, the suspension is filtered and obtained graphene oxide is heated at 500-1000 degrees C under protective gas atmosphere for 0.5-1 hour to obtain graphene. The graphene is transferred to environment maintained at -250 degrees C to -50 degrees C for 0.4-1 hour, and the graphene is cooled and annealed at 200-300 degrees C for 5-12 hours. USE - Manufacture of graphene (claimed). ADVANTAGE - The graphene is manufactured with large specific surface area.