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Free Standing Surfactant films
We are interested in electrochemical investigations into the transport properties of free standing ultra-thin surfactant films and the associated meniscus. We have developed a new electrochemical cell composed of a 25 μm diameter gold wire placed through a stable surfactant film which served as the electrolyte. [1] Solutions containing anionic sodium dodecyl sulphate (SDS) or non-ionic Triton-X100 surfactants, with background electrolyte NaCl and with electroactive probe ferrocyanide or ferrocene methanol, were used to create the surfactant films. The electrolyte was an ultra-thin surfactant film creating a two dimensional solution with a thickness between 300 and 1000 nm, and its meniscus at the gold wire, within which the electroactive probe was free to diffuse. This work is in collaboration with Prof. David E. Williams, Chemistry Auckland NZ, and Dr. Katherine Holt, UCL Chemistry.
2 Researchers
1 External Collaborators
  • Professor David Williams
    University of Auckland - New Zealand
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