• 专利标题:   Synthesis of graphene/carbon nano tube/graphene composite material involves dry oxidizing graphite particles, putting in microwave reaction chamber, adding protective gas, heating chamber by microwave, adding carbon source/protective gas.
  • 专利号:   CN103224227-A
  • 发明人:   LIU C, LIU Y, QIAO D, SONG Z
  • 专利权人:   SHENZHEN VKIRIN TECHNOLOGICAL DEV CO LTD
  • 国际专利分类:   B82Y040/00, C01B031/02, C01B031/04
  • 专利详细信息:   CN103224227-A 31 Jul 2013 C01B-031/04 201379 Pages: 11 Chinese
  • 申请详细信息:   CN103224227-A CN10021156 30 Jan 2012
  • 优先权号:   CN10021156

▎ 摘  要

NOVELTY - In situ synthesis of graphene and carbon nano tube/graphene composite material using microwave preparation method involves: dry oxidation of graphite particles to form graphene layer, and putting it in microwave reaction chamber, pumping vacuum to chamber and introducing protective gas, heating chamber to 300-600 degrees C by microwave for 2-180 seconds, cooling whole reaction system to 100 degrees C under protection of nitrogen atmosphere, to obtain graphene sheet, heating chamber, introducing carbon source gas and protective gas to chamber; and growing carbon nano-tube in graphene sheet. USE - For in situ synthesis of graphene and carbon nano tube/graphene composite material using microwave preparation method (claimed). ADVANTAGE - The method adopts microwave heating method, in situ, one-dimensional structure with carbon nano-materials of the graphite alkenyl composite material, do not need pre-synthesis process, thus the method is simple, with low production cost. The uses microwave heating technology, providing fast heating speed, high efficiency, small energy consumption, short production period and low preparation cost. DETAILED DESCRIPTION - In situ synthesis of graphene and carbon nano tube/graphene composite material using microwave preparation method involves: dry oxidation of graphite particles to form graphene layer, and putting it in the microwave reaction chamber, pumping vacuum to the microwave reaction chamber and introducing protective gas, heating the reaction chamber to 300-600 degrees C by microwave, heating for 2-180 seconds, closing the microwave, cooling the whole reaction system to 100 degrees C under the protection of nitrogen atmosphere, to obtain graphene sheet, heating the reaction chamber to 500-1000 degrees C, introducing carbon source gas and protective gas to the reaction chamber, and growing carbon nano-tube in graphene sheet.