Purification, cutting and side-wall functionalisation of multi-walled carbon nanotubes using potassium permanganate solutions

Aitchison, Tony J., Ginic-Markovic, Milena, Matisons, Janis G., Simon, George, & Fredericks, Peter M. (2007) Purification, cutting and side-wall functionalisation of multi-walled carbon nanotubes using potassium permanganate solutions. Journal of Physical Chemistry Part C: Nanomaterials and Interfaces, 111(6), pp. 2440-2446.

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In this work multi-walled carbon nanotubes were examined using a combination of thermal annealing followed by chemical treatments with potassium permanganate solution. Functionalisation with carboxylic acid moieties through this newly devised process simultaneously purified and cut the nanotubes. A cutting procedure using potassium permanganate has not been previously reported, making this report a stepping stone to further functionalization/application opportunities. One such further functionalization was explored here with alkyl groups, through the generation of an amide linkage. Increased suspension stability towards polar solvents for the nanotubes with high concentrations of MnO2 deposits, and in non-polar solvents the nanotubes with large alkyl chains attached was observed, thus proving it to be a versatile treatment.

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ID Code: 8935
Item Type: Journal Article
Refereed: Yes
Additional Information: This article is freely available from the American Chemical Society website 12 months after the publication date. See links to publisher website in this record.
Keywords: Carbon nanotubes, FTIR, functionalization
DOI: 10.1021/jp066541d
ISSN: 1932-7447
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2007 American Chemical Society
Deposited On: 10 Aug 2007 00:00
Last Modified: 29 Feb 2012 13:32

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