Polysulfonium as a new electrode-modifying polyelectrolyte

Kenichi Oyaizu, H. Nakano, J. Natori, E. Tsuchida

    Research output: Contribution to journalArticle

    11 Citations (Scopus)

    Abstract

    A new type of cationic polyelectrolyte, poly(methylsulfonio-1,4-phenylenethio-1,4-phenylene trifluoromethanesulfonate), that adheres to a glassy carbon electrode surface has been employed to bind a ferricyanide anion to the electrode surface from electrolyte solutions. The complex incorporated by the polyelectrolyte shows significant shifts in formal potential to less positive values due to the stronger binding of ferricyanide by the polycation coating than that of ferrocyanide. The apparent formal potential for the incorporated ferricyanide/ferrocyanide redox couple changes as the concentration of supporting electrolyte is varied. The polycation coating is anion-permselective when a methanesulfonate is used as a supporting electrolyte.

    Original languageEnglish
    Pages (from-to)232-236
    Number of pages5
    JournalJournal of Electroanalytical Chemistry
    Volume498
    Issue number1-2
    DOIs
    Publication statusPublished - 2001 Feb 16

    Fingerprint

    Polyelectrolytes
    Electrolytes
    Electrodes
    Anions
    Negative ions
    Coatings
    Glassy carbon
    polycations
    hexacyanoferrate III
    hexacyanoferrate II

    Keywords

    • Modified electrode
    • Polyelectrolyte
    • Redox potential

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Analytical Chemistry
    • Electrochemistry

    Cite this

    Polysulfonium as a new electrode-modifying polyelectrolyte. / Oyaizu, Kenichi; Nakano, H.; Natori, J.; Tsuchida, E.

    In: Journal of Electroanalytical Chemistry, Vol. 498, No. 1-2, 16.02.2001, p. 232-236.

    Research output: Contribution to journalArticle

    Oyaizu, Kenichi ; Nakano, H. ; Natori, J. ; Tsuchida, E. / Polysulfonium as a new electrode-modifying polyelectrolyte. In: Journal of Electroanalytical Chemistry. 2001 ; Vol. 498, No. 1-2. pp. 232-236.
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