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AssigneeKorea Institute of Science and Technology
InventorsJae Kap LEE, Kwang Koo JEE
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The present invention has been proposed to solve various problems including the above problems, and an object of the present invention is to provide a method of stabilizing carbon nanotubes by oxidizing catalyst metal particles included in the carbon nanotubes by oxidation heat treatment or by melting and removing the catalyst metal particles in a vacuum atmosphere. According to an aspect of the present invention to achieve the object, the method includes preparing carbon nanotubes including a catalyst metal and oxidizing the catalyst metal by heat-treating the carbon nanotubes. According to another aspect of the present invention to achieve the object, the method includes preparing carbon nanotubes including a catalyst metal, melting the catalyst metal by heat-treating the carbon nanotubes, and acid pickling the carbon nanotubes having undergone the melting process.
A method of stabilizing carbon nanotubes, the method comprising:
Stabilized carbon nanotubes comprising particles of an oxide of a catalyst metal in inner spaces thereof.
A method of stabilizing carbon nanotubes, the method comprising:
Carbon nanotubes wherein a catalyst metal is removed from inner spaces of the carbon nanotubes.
Dependencies are inferred from the claim text.