A new method of preparing single-walled carbon nanotubes
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- Vivekchand, S.R.C. & Govindaraj, A. J Chem Sci (2003) 115: 509. doi:10.1007/BF02708242
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A novel method of purification for single-walled carbon nanotubes, prepared by an arc-discharge method, is described. The method involves a combination of acid washing followed by high temperature hydrogen treatment to remove the metal nanoparticles and amorphous carbon present in the as-synthesized singlewalled carbon nanotubes. The purified single-walled carbon nanotubes have been characterised by low-angle X-ray diffraction, electron microscopy, thermo-gravi-metric analysis and Raman spectroscopy.