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Issue 18, 2009
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Double-walled carbon nanotube dispersion viasurfactant substitution

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Abstract

A new approach for the stabilisation of double-walled carbon nanotubes in aqueous media was developed. A low molecular weight surfactant was used in the first stage for the debundling of the nanotubes followed by substitution with a higher molecular weight surfactant or non-ionic surfactants. Dispersions were characterized by optical density measurements, SEM and DLS. The presence of remaining low molecular weight surfactant was investigated by FT-IR. Double walled carbon nanotube dispersions showed good dispersion stability and non-detectable amounts of the initial surfactant, which was completely removed. Such a method could be useful for preparation of stable aqueous dispersions of carbon nanotubes with low concentration of surfactants, which is especially important for toxicity studies.

Graphical abstract: Double-walled carbon nanotube dispersion viasurfactant substitution

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Publication details

The article was received on 13 Aug 2008, accepted on 26 Jan 2009 and first published on 23 Feb 2009


Article type: Paper
DOI: 10.1039/B814122N
Citation: J. Mater. Chem., 2009,19, 2729-2736
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    Double-walled carbon nanotube dispersion viasurfactant substitution

    V. Datsyuk, P. Landois, J. Fitremann, A. Peigney, A. M. Galibert, B. Soula and E. Flahaut, J. Mater. Chem., 2009, 19, 2729
    DOI: 10.1039/B814122N

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