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Zeta-Potential Measurements of Surfactant-Wrapped Individual Single-Walled Carbon Nanotubes

White, Brian, Banerjee, Sarbajit, O'Brien, Stephen, Turro, Nicholas J., Herman, Irving P.·2007·The Journal of Physical Chemistry C

Abstract

A systematic study of the zeta (ζ)-potential distribution of surfactant-wrapped individual single-walled carbon nanotubes (SWNTs) dissolved in water is presented here. The surface charge on the SWNT micelles, as measured by the ζ-potential, has implications for the stability of the dispersions and for the electrophoretic and dielectrophoretic assembly and alignment of SWNTs. Very highly charged SWNTs are obtained by dispersing the nanotubes in high concentrations of anionic and cationic surfactants, whereas almost neutral SWNTs are obtained by using non-ionic surfactants. The ζ-potential of the dissolved SWNTs is tuned by adjusting the surfactant concentration, the alkyl chain length of the surfactant molecule, and the solution pH in different surfactant−SWNT systems.

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Metadata

Authors
White, B., Banerjee, S., O'Brien, S., Turro, N. J., & Herman, I. P.
Venue
The Journal of Physical Chemistry C
Published
2007-08-29
Volume
111
Issue
37
Pages
13684-13690
ISSN
  • 1932-7447 (ISSN-L)
  • 1932-7455
OpenAlex
W2107553953
Cited by
421
References
0
FWCI
7.68
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Zeta-Potential Measurements of Surfactant-Wrapped Individual Single-Walled Carbon Nanotubes. https://app.cochat.ai/papers/10.1021/jp070853e
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White, B., Banerjee, S., O'Brien, S., Turro, N. J., & Herman, I. P. (2007). Zeta-Potential Measurements of Surfactant-Wrapped Individual Single-Walled Carbon Nanotubes. The Journal of Physical Chemistry C. https://doi.org/10.1021/jp070853e

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