| 摘要 |
PURPOSE: A method for fabricating carbon nanotube is provided to continuously mass produce carbon nanotube or carbon nanofiber by continuously supplying catalytic metal particles whose composition, and particle size and distribution are adjusted in advance. CONSTITUTION: The method for fabricating carbon nanotube comprises the steps of preparing a colloidal solution of particles having a nanometer size consisting of metal elements or metal compounds with or without existence of surfactant; preparing a gas phase mixture by mixing the resulting colloidal solution with carrier gas, carbon source or a mixture thereof; and forming carbon nanotube or carbon nanofiber by introducing the gas phase mixture into a heated reactor. The method for fabricating carbon nanotube comprises the steps of forming a homogeneous reversed phase emulsion formed of particles a nanometer size by adding metal salts or a mixture thereof to surfactant contained water or polar or nonpolar organic solvent; preparing a colloidal solution formed of metal particles having a nanometer size by using metal ions themselves or reducing metal salts; introducing the resulting colloidal solution into a reactor in which the colloidal solution and carrier gas are heated in a gas mixture shape; and forming the carbon nanotube or the carbon nanofiber.
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