METHOD FOR PURIFICATION OF CARBON NANOTUBES

摘要

The present invention provides a method for purification of carbon nanotubes comprising a step of reacting metal remaining in carbon nanotubes with a chlorine-containing compound at a first temperature in a vacuum or inert atmosphere so as to chlorinate the residual metal, and evaporating and removing the chlorinated residual metal at a second temperature higher than the first temperature. The purification method according to the present invention can provide a purification method that does not cause physical damage or shape deformation of carbon nanotubes, by purifying the carbon nanotubes in a manner of evaporating a chlorinated metal.