Impedance analysis of electrodeposited insulating polypyrrole

Shinichi Komaba, Tetsuya Osaka*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


To develop a general quantitative method of analyzing the process of electrodeposition of high resistance materials, the electrical resistance of electrochemically deposited insulating polypyrrole (PPy) film was measured in situ by ac impedance. By considering the potential drop across the PPy film during its formation by constant potential electrolysis, the growth of the insulating PPy film was analyzed, and an equivalent circuit describing the interfacial structure was proposed.

Original languageEnglish
Pages (from-to)19-23
Number of pages5
JournalJournal of Electroanalytical Chemistry
Issue number1-2
Publication statusPublished - 1998 Aug 14


  • Electrodeposition
  • Impedance
  • Polypyrrole

ASJC Scopus subject areas

  • Analytical Chemistry
  • Chemical Engineering(all)
  • Electrochemistry


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