TITLE

Simultaneous purification and functionalization of carbon nanotubes using chlorination

AUTHOR(S)
Pełech, Iwona; Narkiewicz, Urszula; Moszyński, Dariusz; Pełech, Robert
PUB. DATE
December 2012
SOURCE
Journal of Materials Research;Dec2012, Vol. 27 Issue 18, p2368
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Multiwalled carbon nanotubes (MWCNTs) obtained using ethylene as a carbon source and nanocrystalline iron as a catalyst were used as the initial material. The functionalization of MWCNTs was carried out using chlorine in the liquid and gas phase. In the second case, the reaction was conducted in the temperature range from 50 to 450 °C for 2 h. The presence of chlorine species on the surface of chlorinated samples was confirmed by x-ray photoelectron spectroscopy (XPS). A quantitative analysis of metal impurity content was validated by means of thermogravimetric analysis. Better results of metal removal were achieved when the chlorination process was conducted in the gas phase and the ratio of metal in samples amounted from 2.3% to 5.1%.
ACCESSION #
79770365

 

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