Journal of Chemical Sciences

, Volume 115, Issue 5–6, pp 509–518 | Cite as

A new method of preparing single-walled carbon nanotubes



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.


Nanotubes synthesis purification 


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Copyright information

© Indian Academy of Sciences 2003

Authors and Affiliations

  1. 1.Chemistry and Physics of Materials UnitJawaharlal Nehru Centre for Advanced Scientific ResearchBangaloreIndia
  2. 2.Solid State and Structural Chemistry UnitIndian Institute of ScienceBangaloreIndia

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