• DocumentCode
    3487767
  • Title

    Impedance spectroscopy analysis in a complex system: Sodium dodecyl sulfate solutions

  • Author

    Neto, J.M.G. ; Cunha, H. N da ; Neto, J.M.M. ; Ferreira, G.F.Leal

  • Author_Institution
    Dept. de Fisica, Universidade Federal do Piaui, Teresina, Brazil
  • fYear
    2005
  • fDate
    11-14 Sept. 2005
  • Firstpage
    280
  • Lastpage
    283
  • Abstract
    Impedance measurements in the range 10-107 Hz were carried out in solutions of sodium dodecyl sulfate for concentrations below and above cmc. The results were analysed using two series Voigt units, describing bulk and interface process and, additionally, an unexpected inductive one, problably due to inertial effects of an adsorbed layer of SDS molecules at the electrode. The interface processes show a transition at a concentration somewhat below cmc.
  • Keywords
    adsorbed layers; electrodes; interface phenomena; organic compounds; surfactants; 10 to 107 Hz; adsorbed layer; electrode; impedance spectroscopy; inertial effects; interface process; sodium dodecyl sulfate solutions; Aggregates; Dielectric measurements; Electrochemical impedance spectroscopy; Electrodes; Frequency measurement; Impedance measurement; Platinum; Surface impedance; Temperature distribution; Zirconium;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Electrets, 2005. ISE-12. 2005 12th International Symposium on
  • Print_ISBN
    0-7803-9116-0
  • Type

    conf

  • DOI
    10.1109/ISE.2005.1612376
  • Filename
    1612376