Ion exchange behavior of polypyrrole doped with large anions in electrolytes containing mono- and divalent mmetal ions

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Rose-Marie Latonen, Marceline N. Akieh, Kevin Vavra, Johan Bobacka, Ari Ivaska
Publisher: WILEY-V C H VERLAG GMBH
Publication year: 2013
Journal: Electroanalysis
Journal acronym: ELECTROANAL
Volume number: 25
Issue number: 4
Start page: 991
End page: 1004
Number of pages: 14
ISSN: 1040-0397
eISSN: 1521-4109


Abstract

Electrochemical Quartz Crystal Microbalance was used to investigate the ion exchange behavior of polypyrrole (PPy) films doped with multicharged sulfated -cyclodextrin (CD) or 4-sulfonic calix[6]arene (C6S) immersed in 0.1M KNO3, Ca(NO3)2 and Mn(NO3)2. The PPy films showed mixed ion exchange behavior in KNO3 and Ca(NO3)2 solutions, but the ion exchange behavior was more cationic in Mn(NO3)2. In all cases, ion pair formation was observed between cations from the electrolyte and the negatively charged sulfonate groups of the dopant anions. It was also observed that the PPy films became more swollen in Mn(NO3)2 solution than in the other electrolytes.


Keywords

EQCM, Ion exchange, Large anions, Polypyrrole

Last updated on 2020-28-09 at 02:10