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Issue 33, 2008
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Ultrasonication-assisted surface functionalization of double-walled carbon nanotubes with azobis-type radical initiators

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Abstract

This paper reports the development of a facile approach for the functionalization of double-walled carbon nanotubes (DWNTs) with azobis-type radical initiators under combined thermal and sonic conditions. The thermal decomposition of azobis-type radical initiators generates free radicals of the alkyl group terminated with various chemically active sites along with the liberation of nitrogen. These radicals are capable of opening the π-bonds of DWNTs, and the generation of chemically active sites on their surface. With the assistance of ultrasonication they can effectively separate DWNT bundles for radical addition and therefore significantly shorten the reaction time.

Graphical abstract: Ultrasonication-assisted surface functionalization of double-walled carbon nanotubes with azobis-type radical initiators

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Publication details

The article was received on 15 Apr 2008, accepted on 21 May 2008 and first published on 09 Jul 2008


Article type: Paper
DOI: 10.1039/B806384B
Citation: J. Mater. Chem., 2008,18, 3972-3976
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    Ultrasonication-assisted surface functionalization of double-walled carbon nanotubes with azobis-type radical initiators

    J. Chang, H. Wu, G. L. Hwang and T. Su, J. Mater. Chem., 2008, 18, 3972
    DOI: 10.1039/B806384B

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