Our research group developed in situ combined techniques (spectroelectrochemistry,
electrochemical quartz crystal nanobalance, conductivity measurement) to monitor redox
alterations in conducting polymers. Most recently a novel hyphenated combined in situ
method was established, which involves the parallel monitoring of UV-Vis spectra and
electrical conductivity. For these complex experiments special electrodes are needed,
therefore a novel cell-configurations were also developed.
electrochemical quartz crystal nanobalance, conductivity measurement) to monitor redox
alterations in conducting polymers. Most recently a novel hyphenated combined in situ
method was established, which involves the parallel monitoring of UV-Vis spectra and
electrical conductivity. For these complex experiments special electrodes are needed,
therefore a novel cell-configurations were also developed.
Investigation of the redox transformations of conducting polymers via in situ,
simultaneous combined techniques
simultaneous combined techniques
The above mentioned combined technique is capable of monitoring the formation and alteration of different species during
polymerization and redox transformation. Thus we can undoubtedly identify which segment is responsible for the evolution and
sustenance of the conducting state. The gathered conductivity data, combined with the spectroelectrochemical evidences
makes it possible to distinguish the role played by the segments with different oxidation states in the conduction mechanism.
EQCN technique (performed on gold or platinum covered quartz crystal electrode) is also available in our lab, and generally
used to monitor the mass change (ionic and solvent movement) with nanogram precision during electrochemical alterations.
This information surplus combined with the previous data makes us capable of fully characterizing the redox features of
conducting polymer films.
References:
Application of classical and new, direct analytical methods for the elucidation of ion movements during the redox
transformation of polypyrrole
Janaky C, Cseh G, Toth PS, et al.JOURNAL OF SOLID STATE ELECTROCHEMISTRY Volume: 14 Issue: 11 Pages: 1967-1973
Electrosynthesis and comparative studies on carboxyl-functionalized polythiophene derivative Tóth PS, Janáky C, Hiezl Z,
Visy C, ELECTROCHIMICA ACTA Volume 56 Issue 10 Pages 3447-3453
Application of simultaneous monitoring of the in situ impedance and optical changes on the redox transformation of two
polythiophenes: Direct evidence for their non-identical conductance-charge carrier correlation
Toth PS, Peintler-Krivan E, Visy C , ELECTROCHEMISTRY COMMUNICATIONS Volume: 12 Issue: 7 Pages: 958-961
On the Unexpected Cation Exchange Behavior, Caused by Covalent Bond Formation between PEDOT and Cl− Ions:
Extending the Conception for the Polymer−Dopant Interactions
Tóth PS, Janáky C, Berkesi O, Tamm T, Visy C, JOURNAL OF PHYSICAL CHEMISTRY B Volume: 116 Issue:18 Pages: 5491-5500
Hyphenated in situ conductance and spectroelectrochemical studies of polyaniline films on strongly acidic solutions
Tóth PS, Samu GF, Endrődi B, Visy C, ELECTROCHIMICA ACTA Volume: 110 Pages: 446–451
polymerization and redox transformation. Thus we can undoubtedly identify which segment is responsible for the evolution and
sustenance of the conducting state. The gathered conductivity data, combined with the spectroelectrochemical evidences
makes it possible to distinguish the role played by the segments with different oxidation states in the conduction mechanism.
EQCN technique (performed on gold or platinum covered quartz crystal electrode) is also available in our lab, and generally
used to monitor the mass change (ionic and solvent movement) with nanogram precision during electrochemical alterations.
This information surplus combined with the previous data makes us capable of fully characterizing the redox features of
conducting polymer films.
References:
Application of classical and new, direct analytical methods for the elucidation of ion movements during the redox
transformation of polypyrrole
Janaky C, Cseh G, Toth PS, et al.JOURNAL OF SOLID STATE ELECTROCHEMISTRY Volume: 14 Issue: 11 Pages: 1967-1973
Electrosynthesis and comparative studies on carboxyl-functionalized polythiophene derivative Tóth PS, Janáky C, Hiezl Z,
Visy C, ELECTROCHIMICA ACTA Volume 56 Issue 10 Pages 3447-3453
Application of simultaneous monitoring of the in situ impedance and optical changes on the redox transformation of two
polythiophenes: Direct evidence for their non-identical conductance-charge carrier correlation
Toth PS, Peintler-Krivan E, Visy C , ELECTROCHEMISTRY COMMUNICATIONS Volume: 12 Issue: 7 Pages: 958-961
On the Unexpected Cation Exchange Behavior, Caused by Covalent Bond Formation between PEDOT and Cl− Ions:
Extending the Conception for the Polymer−Dopant Interactions
Tóth PS, Janáky C, Berkesi O, Tamm T, Visy C, JOURNAL OF PHYSICAL CHEMISTRY B Volume: 116 Issue:18 Pages: 5491-5500
Hyphenated in situ conductance and spectroelectrochemical studies of polyaniline films on strongly acidic solutions
Tóth PS, Samu GF, Endrődi B, Visy C, ELECTROCHIMICA ACTA Volume: 110 Pages: 446–451
