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Double-walled carbon nanotube dispersion via surfactant substitution

Datsyuk, Vitaliy and Landois, Perine and Fitremann, Juliette and Peigney, Alain and Galibert, Anne Marie and Soula, Brigitte and Flahaut, Emmanuel Double-walled carbon nanotube dispersion via surfactant substitution. (2009) Journal of Materials Chemistry, vol. 19 (n° 18). 2729 -2736. ISSN 1364-5501

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Official URL: http://dx.doi.org/10.1039/b814122n

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.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.rsc.org/ The original PDF of the article can be found at Journal of Materials Chemistry website :http://www.rsc.org/Publishing/Journals/JM/article.asp?doi=b814122n
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
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Deposited By:Nihad Lahdifi

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