Redox anion doped polypyrolle films; electrochemical behaviour of polypyrrole prepared in Fe(CN)6 solution

M. Tölgyesi, A. Szücs, Cs Visy, M. Novák

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23 Citations (Scopus)

Abstract

Polypyrrole films were formed with hexacyano-ferrate (HCF) anions as exclusive dopants. It was observed that a portion of the built-in HCF displayed reversible electro-chemistry, but the majority of the doping anions are non-electroactive, while they are inside the polymers. Calculations showed that one excess positive charge on the polymer backbone was compensated by one HCF ion, thus, the entrapment of these multivalent anions was accompanied by the inclusion of a large amount of cations as well. These films were sensitive for the size of the cations present in the solution.

Original languageEnglish
Pages (from-to)1127-1133
Number of pages7
JournalElectrochimica Acta
Volume40
Issue number9
DOIs
Publication statusPublished - Jun 1995

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Keywords

  • cation exchange
  • cation inclusion
  • polypyrolle
  • redox dopant
  • size sensitivity

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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