| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for refining a carbon nanotube where, from a carbon impurity-containing carbon nanotube product produced using a metal catalyst, the carbon impurities are easily removed, and a carbon nanotube with high purity can be obtained, and to provide a carbon nanotube with high purity obtained by the refining method. SOLUTION: The method for refining a carbon impurity-containing carbon nanotube produced using a metal catalyst, includes a process where a magnetic field is acted on the carbon nanotube product, thus the carbon nanotube stuck to the metal catalyst and the carbon impurities are separated, and the carbon impurities are removed. The carbon nanotube with high purity is obtained by the refining method. COPYRIGHT: (C)2006,JPO&NCIPI
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