• 专利标题:   GRAPHENE MODIFIED BY NITROGEN ATOMS AND ITS MANUFACTURING METHOD.
  • 专利号:   RU2750709-C1
  • 发明人:   CHESNOKOV V V, PARMON V N, CHICHKAN A S
  • 专利权人:   AS RUSSIA BORESKOV CATALYSIS INST SIBE
  • 国际专利分类:   C01B032/184, B82Y030/00, B82Y040/00
  • 专利详细信息:   RU2750709-C1 01 Jul 2021 C01B-032/184 202180 Pages: 0 Russian
  • 申请详细信息:   RU2750709-C1 RU134130 19 Oct 2020
  • 优先权号:   RU134130

▎ 摘  要

NOVELTY - Invention relates to the production of graphene modified by atoms of nitrogen, which is used in electronic devices for storing energy, such as supercapacitors, lithium-ion batteries. To prepare graphene modified with nitrogen atoms, a dispersed simple or mixed group II metal oxide is heated in a flow reactor for 20-30 minutes in an inert gas current at a flow rate of 15-20 l/h to 650-700C. Then, without cooling the reactor, the inert gas is replaced with a mixture of NH3-C2H2-C2H4 gases and the gas decomposition reaction is carried out at 650-700C for 30-120 minutes and the gas mixture flow rate is 5-15 l/h. The carbonized product is cooled in an inert gas current. The carbonized metal oxide is etched by treatment with an acid solution to purify the carbon film from the original metal oxide. The resulting sample of nitrogen-containing graphene is filtered, washed and dried. Graphene modified with nitrogen atoms is obtained, containing 1-5 carbon layers and up to 5 wt.% of nitrogen. USE - Material engineering. ADVANTAGE - Invention makes it possible to simplify the production of graphene modified by nitrogen atoms, to improve its quality. 7 cl, 1 tbl, 16 ex