In situ electrochemical ESR investigations of the growth of one- and two-dimensional polypyrrole films

J. Bacskai, G. Inzelt, A. Bartl, L. Dunsch, G. Paasch

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In situ ESR-spectroscopic investigations of the electrochemical growth of polypyrrole (PPy) in 0.1 mol dm-3 toluene sulfonic acid solutions in acetonitrile are presented. The films were deposited potentiostatically and galvanostatically onto gold electrodes. ESR spectra were simultaneously recorded during electrodeposition processes at high and low current densities, respectively. Differences in the paramagnetic properties of the PPy films thus prepared have been observed depending on the applied current densities. Furthermore, the spin concentration in the PPy film is not proportional to the injected charge. Therefore, two different mechanisms of film formation occur depending on the applied current densities.

Original languageEnglish
Pages (from-to)227-230
Number of pages4
JournalSynthetic Metals
Volume67
Issue number1-3
DOIs
Publication statusPublished - 1994

Fingerprint

polypyrroles
Polypyrroles
Paramagnetic resonance
Current density
current density
Sulfonic Acids
sulfonic acid
Toluene
low currents
Acetonitrile
Electrodeposition
electrodeposition
Gold
acetonitrile
high current
toluene
gold
Electrodes
electrodes
Acids

Keywords

  • Electrochemistry
  • Electron spin resonance
  • Films
  • Polypyrrole

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

Cite this

In situ electrochemical ESR investigations of the growth of one- and two-dimensional polypyrrole films. / Bacskai, J.; Inzelt, G.; Bartl, A.; Dunsch, L.; Paasch, G.

In: Synthetic Metals, Vol. 67, No. 1-3, 1994, p. 227-230.

Research output: Contribution to journalArticle

Bacskai, J. ; Inzelt, G. ; Bartl, A. ; Dunsch, L. ; Paasch, G. / In situ electrochemical ESR investigations of the growth of one- and two-dimensional polypyrrole films. In: Synthetic Metals. 1994 ; Vol. 67, No. 1-3. pp. 227-230.
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