METHOD FOR PURIFICATING CARBON NANOTUBE AND ELECTROMAGNETIC WAVE ABSORPTION MATERIAL TO INCLUDE CARBON NANOTUBE THAT FABRICATED USING THE SAME

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 compri...

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Bibliographic Details
Main Authors LIM, JAE SEOK, HWANG, TAE JO, MOON, SEUNG HWAN, OH, KYEONG KEUN, SUNG, YONG HO, LEE, CHANG HOON
Format Patent
LanguageEnglish
Korean
Published 07.05.2010
Subjects
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
MANUFACTURE OR TREATMENT THEREOF
METALLURGY
NANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS,MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES ASDISCRETE UNITS
NANOTECHNOLOGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
TRANSPORTING
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Summary: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.
Bibliography:Application Number: KR20080105286