Functionalization of carbon nanotubes via dissolving metal reductions

F. Borondics, E. Jakab, S. Pekker

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

In this study we present direct sidewall functionalization of single-walled nanotubes, carried out via two different dissolving metal reduction methods. A modified Birch reduction scheme and a novel synthetic route were applied to form carbanion complexes on the surface of the nanotubes in liquid NH 3 and tetrahydrofuran, respectively. The carbanion complex was reacted with a series of alkyl and aryl halogenides resulting in the corresponding SWNT derivatives. We determined the chemical composition and the thermal stability of the tunctionalized nanotubes by thermogravimetry/mass spectrometry and pyrolysis-gas chromatography. Characteristic decomposition peaks, observed in the temperature range of 350-600 °C, suggest the formation of covalent derivatives upon functionalization that is also supported by Raman spectroscopic studies. The influence of the functional groups and the type of nanotubes on the thermal stability, as well as the relationship between the functional group content and the intensity of the Raman D peak are discussed.

Original languageEnglish
Pages (from-to)1551-1559
Number of pages9
JournalJournal of Nanoscience and Nanotechnology
Volume7
Issue number4-5
DOIs
Publication statusPublished - Apr 2007

Fingerprint

Nanotubes
Carbon Nanotubes
Carbon nanotubes
Metals
Functional groups
Thermodynamic stability
Hot Temperature
Thermogravimetry
Derivatives
Betula
Gas chromatography
Gas Chromatography-Mass Spectrometry
Mass spectrometry
Thermogravimetric analysis
Pyrolysis
Decomposition
Temperature
Liquids
Chemical analysis

Keywords

  • Carbon nanotubes
  • Dissolving metal reduction
  • Functionalization
  • Raman spectroscopy
  • Thermogravimetry-mass spectrometry

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Materials Science (miscellaneous)
  • Engineering (miscellaneous)

Cite this

Functionalization of carbon nanotubes via dissolving metal reductions. / Borondics, F.; Jakab, E.; Pekker, S.

In: Journal of Nanoscience and Nanotechnology, Vol. 7, No. 4-5, 04.2007, p. 1551-1559.

Research output: Contribution to journalArticle

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