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.
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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|Item Type:||Journal Article|
|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|
|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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