Electrochemical characterization of poly (3,4-ethylenedioxythiophene) (PEDOT) doped with sulfonated thiophenes

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Abstract

Results froth the potentiometric measurements showed that the difference in length of the alkyl chain of the doping ions C6H7S2O4- and C10H15S2O4- has no significant effect on the sensitivity or selectivity of GC/PEDOT(C6H7S2O4-) and GC/PEDOT(C10H15S2O4-) sensors to Ag'. More differences can be seen in the cyclic voltammograms and EIS spectra of the sensors. FUR spectra confirmed that both C10H15S2O4- and C10H15S2O4- act as doping ions in the electrosynthesis of PEDOT based films and they are not irreversibly immobilized in the polymer backbone. (c) 2007 Elsevier Ltd. All rights reserved.
Original languageUndefined/Unknown
Pages (from-to)3755–3762
Number of pages8
JournalElectrochimica Acta
Volume53
Issue number11
DOIs
Publication statusPublished - 2008
MoE publication typeA1 Journal article-refereed

Keywords

  • conducting polymer
  • poly(3,4-ethylenedioxythiophene)
  • silver ion-selective electrode
  • sulfonated thiophenes

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