▎ 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.