Combined electrochemical and radiotracer study of anion sorption from aqueous solutions into polypyrrole films

Research output: Article

39 Citations (Scopus)

Abstract

The sorption of SO2-4 and Cl- ions into polypyrrole films has been studied by the radiotracer method under potential cycling and steady state conditions using labelled H2SO4 and HCl. Although a potential dependent migration and penetration of anions in the film can be detected, no strong correlation was found between the amount of charge consumed in the oxidation and reduction processes and the number of sorbed anions. The number of positively charged sites attracting anions into the film seems to be significantly lower than that expected from the amount of charge involved in the electrochemical transformations.

Original languageEnglish
Pages (from-to)257-265
Number of pages9
JournalJournal of Electroanalytical Chemistry
Volume230
Issue number1-2
DOIs
Publication statusPublished - aug. 25 1987

ASJC Scopus subject areas

  • Analytical Chemistry
  • Chemical Engineering(all)
  • Electrochemistry

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