| 摘要 |
PURPOSE: A mass synthesis equipment of carbon nanotubes using pyrolysis is provided to continuously produce carbon nanotubes by supplying liquid or gas phase hydrocarbon, and a vaporized liquid or solid phase transition metal precursor to a high temperature vertical furnace, and synthesize high purity multilayered or single layered nanotubes by supplying a liquid or gas phase sulfur precursor. CONSTITUTION: The mass synthesis equipment of carbon nanotubes using pyrolysis comprises a reaction tube(110), heating units(120,121), a liquid and gas hydrocarbon supplying unit(130), a sulfur precursor and catalytic metal precursor supply unit(140), a nanotube collection unit(150) and an injection port which can be cooled(160), wherein the reaction tube(110) is vertically installed, the injection port(160) is formed at the upper part of the reaction tube(110), a buffer gas is supplied between the injection port(160) and the reaction tube(110) so as to prevent a counterflow to the upper side of a decomposed material in the gas state, and the injection port(160) is connected to the hydrocarbon supplying unit(130) and the sulfur and catalytic precursor supply unit(140), wherein the liquid phase hydrocarbon is selected from xylene, benzene and cyclohexanone, hydrofuran, the gas phase hydrocarbon is selected from acetylene, ethylene, propylene, methane, ethane, propane, butane and LPG, the sulfur precursor is selected from hydro sulfide gas and liquid phase thiophene, and a precursor comprising a catalytic metal is selected from ferrocene, cobaltocene, nickelocene, iron pentacarbonyl and iron, nickel, cobalt-phthalocyanin.
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