Vandsburger, Leron and Swanson, Edward J. and Tavares, Jason and Meunier, Jean-Luc and Coulombe, Sylvain (2009) Stabilized aqueous dispersion of multi-walled carbon nanotubes obtained by RF glow-discharge treatment. Journal of Nanoparticle Research, 11 (7). pp. 1817-1822.
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Official URL: http://www.springerlink.com/content/5878761u1l576x...
Abstract
This article reports a method for surface modification of multi-walled carbon nanotubes (MWNTs) using a low-pressure capacitively coupled RF glow-discharge. Ar/C2H6 and Ar/C2H6/O2 gaseous mixtures were used to produce non-polar (np-) and polar (p-) coatings, respectively, onto MWNTs. After 5 min of plasma treatment at 20 W and 20 torr, strongly hydrophobic and non-electrically conductive np-MWNTs were produced. The p-MWNTs were strongly hydrophilic and showed no measurable hydrophobic recovery 2 weeks after treatment. Aqueous suspensions of p-MWNTs remained stable and free of agglomerates after being boiled. The ζ-potential of p-MWNT nanofluids was −40.3 mV, indicating a highly stable dispersion.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Carbon nanotubes - Nanofluids - Suspensions - Plasma treatment - Colloids - MWCN |
| Subjects: | Material Science > Nanofabrication processes and tools Material Science > Soft materials Material Science > Nanochemistry |
| ID Code: | 7707 |
| Deposited By: | Lesley Tobin |
| Deposited On: | 31 Mar 2010 16:55 |
| Last Modified: | 31 Mar 2010 16:55 |
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