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Ion Exchange Behavior of Polypyrrole Doped with Large Anions in Electrolytes Containing Mono‐ and Divalent Mmetal Ions
Author(s) -
Latonen RoseMarie,
Akieh Marceline N.,
Vavra Kevin,
Bobacka Johan,
Ivaska Ari
Publication year - 2013
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201200566
Subject(s) - divalent , polypyrrole , inorganic chemistry , ion , electrolyte , chemistry , doping , ion exchange , materials science , electrode , electrochemistry , organic chemistry , optoelectronics
Electrochemical Quartz Crystal Microbalance was used to investigate the ion exchange behavior of polypyrrole (PPy) films doped with multicharged sulfated β‐cyclodextrin (βCD) or 4‐sulfonic calix[6]arene (C6S) immersed in 0.1 M KNO 3 , Ca(NO 3 ) 2 and Mn(NO 3 ) 2 . The PPy films showed mixed ion exchange behavior in KNO 3 and Ca(NO 3 ) 2 solutions, but the ion exchange behavior was more cationic in Mn(NO 3 ) 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(NO 3 ) 2 solution than in the other electrolytes.