• 专利标题:   Preparation of large-piece graphene for e.g. electronic material involves performing layer inserting treatment on graphite powder under mild condition and presence of acid and oxidizing agent, and washing with dilute hydrochloric acid.
  • 专利号:   CN104386680-A, WO2016074393-A1, CN104386680-B, EP3219668-A1, EP3219668-A4, US2017334727-A1
  • 发明人:   BAI Y, HU X, SHA X, SHA Y
  • 专利权人:   SHA X, SHA Y, SHANGHAI KYORENENEW MATERIALS TECHNOLOGY CO LTD, SHANGHAI SHIMOXI NEW MATERIAL TECHNOLOGY CO LTD, SHANGHAI KYORENE NEW MATERIALS TECHNOLOG, SHANGHAI KYORENENEW MATERIALS TECHNOLOGY
  • 国际专利分类:   C01B031/04, C01B031/00, C01B032/00, B82Y030/00, B82Y040/00, C01B032/194, C01B032/184, C01B032/23, H01B001/04
  • 专利详细信息:   CN104386680-A 04 Mar 2015 C01B-031/04 201535 Pages: 11 Chinese
  • 申请详细信息:   CN104386680-A CN10647957 14 Nov 2014
  • 优先权号:   CN10647957, WOCN074139

▎ 摘  要

NOVELTY - Large-piece graphene is prepared by performing layer inserting treatment on graphite powder under mild condition and presence of acid and oxidizing agent, washing with dilute hydrochloric acid to remove metal and inorganic ions, filtering, drying, and performing high-temperature treatment. USE - Preparation of large-piece graphene for electronic material and functional coating. ADVANTAGE - Large-piece graphene has complete crystal structure and large radial size, and preparation is simple, low-cost, and environment-friendly and has mild conditions and high product yield and efficiency. DESCRIPTION OF DRAWING(S) - The drawing shows a scanning electron microscope (SEM) image of large-piece graphene.