Polymer-coated microelectrodes and twin electrode thin layer cells applied to electron transfer cross-reaction and permeability rates

Andrew G. Ewing, B. J. Feldman, Royce W. Murray

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Electropolymerized films prepared from the monomers [Ru(4-methyl-4′-vinyl-2,2′-bipyridine)3]2+ and [Os(bpy)2(4-vinylpyridine)2]2+ are coated on 10-μm diameter Pt microdisk electrodes and on one (Pt) face of a twin electrode thin layer cell. These new forms of polymer-coated electrodes are applied to measurements of polymer/solution interfacial electron transfer mediation kinetics and of rates of permeation of ferrocene and ferricenium through the polymer films. The electron transfer rates agree with independently determined rates from polymer-coated rotated disk electrodes. The permeation rate of ferrocene through the poly-cationic films is about three times larger than that for ferricenium ion.

Original languageEnglish (US)
Pages (from-to)145-153
Number of pages9
JournalJournal of Electroanalytical Chemistry
Volume172
Issue number1-2
DOIs
StatePublished - Aug 24 1984

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Chemical Engineering(all)
  • Electrochemistry

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