High efficiency purification method for multi-walled carbon nanotubes
Journal
Digest of Papers - Microprocesses and Nanotechnology 2003 - 2003 International Microprocesses and Nanotechnology Conference, MNC 2003
Pages
214-215
Date Issued
2003
Author(s)
Abstract
We remove the impurity and studied the reaction temperature and reagent and the purification methods for multiwalled carbon nanotubes (MWNTs). Defects within the MWNT structure can reduce the effective band overlap and therefore lead to an increase in the material's electrical resistivity. The main impurities in MWNT are iron particles, amorphous carbon, multishell carbon nanocapsules. The results obtained from Raman spectroscopy and thermogravimetric analysis explain that most defects such as metal or carbon defects can be purified by the proposed method.
Type
conference paper