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Double-walled carbon nanotube dispersion via surfactant substitution

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.
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Submitted on : Wednesday, June 29, 2016 - 4:15:08 PM
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  • HAL Id : hal-01339359, version 1


Vitaliy Datsyuk, Perine Landois, Juliette Fitremann, Alain Peigney, Anne Marie Galibert, et al.. Double-walled carbon nanotube dispersion via surfactant substitution. Journal of Materials Chemistry, Royal Society of Chemistry, 2009, 19, pp.2729-2736. ⟨hal-01339359⟩



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