Electrochemical characterization of self-assembled ferrocene-terminated alkanethiol monolayers on low-index gold single crystal electrodes

Alexander V. Rudnev, Koji Yoshida, Thomas Wandlowski

    研究成果: Article査読

    24 被引用数 (Scopus)

    抄録

    We present a voltammetric and in situ STM study of 11-ferrocenyl-1- undecanethiol (FcC11) assembled on low-index single crystal and polycrystalline gold electrodes. The influence of electrode surface structure as well as of structure defects in the self-assembled FcC11 monolayers on the electrochemical response during the oxidation and reduction of the terminal ferrocene group is explored. The nature of the redox peaks is discussed in detail. We identified the coexistence of disordered FcC11 regions with 2D patches of "locally ordered" FcC11 species. We demonstrate that close-packed domains are preferentially formed at atomically flat terraces. Increasing the defect density of the substrate surface leads to a decreasing amount of locally ordered FcC11 molecules.

    本文言語English
    ページ(範囲)770-778
    ページ数9
    ジャーナルElectrochimica Acta
    87
    DOI
    出版ステータスPublished - 2013 1月 1

    ASJC Scopus subject areas

    • 化学工学(全般)
    • 電気化学

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