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METHOD FOR PURIFICATING CARBON NANOTUBE AND ELECTROMAGNETIC WAVE ABSORPTION MATERIAL TO INCLUDE CARBON NANOTUBE THAT FABRICATED USING THE SAME
METHOD FOR PURIFICATING CARBON NANOTUBE AND ELECTROMAGNETIC WAVE ABSORPTION MATERIAL TO INCLUDE CARBON NANOTUBE THAT FABRICATED USING THE SAME
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机译:纯化碳纳米管和电磁波吸收材料以包含使用相同方法制造的碳纳米管的方法
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摘要
PURPOSE: A purification method of a carbon nano tube and the electromagnetic wave absorber including the carbon nano tube are provided to obtain the carbon nano tube with high purity by removing a metallic catalyst or amorphous carbon. CONSTITUTION: A purification method of a carbon nano tube comprises the following steps: preparing the carbon nano tube in a pristine state; processing a dry purification by blowing oxidative gas at 300~550 deg C to the carbon nano tube for 1~2 hours; processing a wet purification by dipping the carbon nano tube to a purification solution at 60~90 deg C, and stirring for 1~2 hours for removing the solution. The oxidative gas is selected from air, oxygen and carbon dioxide. The purification solution is a mixture of more than substance selected from nitric acid, sulfuric acid, hydrochloric acid, and potassium permanganate.
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