Paper Title:
Functionalization of Multi-Walled Carbon Nanotubes
  Abstract

In order to alter the physical/chemical characteristics of multi-walled carbon nanotubes (MWNTs) we modified them by different organic reactions (Diels-Alder and Sand-Meyer reaction, oxidation) and their d properties were characterized by thermogravimetry/mass spectrometry, photoelectron spealterectroscopy, and nuclear magnetic resonance spectroscopy, as well as by dispersion. The results proved that, depending on the groups built in the MWNTs, the modified carbon nanotubes are more dispersible either in polar or apolar solvents and the suspensions are stable for long time. The presence of the substituents in the MWNTs was proved by methods listed above, e.g. high concentration of sulfur was detected when SO3H groups were inserted onto the MWNTs. The enhanced thermal stability of the modified carbon nanotubes allows their further application.

  Info
Periodical
Materials Science Forum (Volumes 537-538)
Edited by
J. Gyulai and P.J. Szabó
Pages
623-630
DOI
10.4028/www.scientific.net/MSF.537-538.623
Citation
A. Gergely, J. Telegdi, E. Kálmán, "Functionalization of Multi-Walled Carbon Nanotubes", Materials Science Forum, Vols. 537-538, pp. 623-630, 2007
Online since
February 2007
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Price
$32.00
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