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    Electron Hopping Between Fe 3d States in Ethynylferrocene-doped Poly(Methyl Methacrylate)-poly(Decyl Methacrylate) Copolymer Membranes

    Access Status
    Fulltext not available
    Authors
    Cuartero, M.
    Acres, R.
    Jarolímová, Z.
    Bakker, E.
    Crespo, G.
    De Marco, Roland
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Cuartero, M. and Acres, R. and Jarolímová, Z. and Bakker, E. and Crespo, G. and De Marco, R. 2017. Electron Hopping Between Fe 3d States in Ethynylferrocene-doped Poly(Methyl Methacrylate)-poly(Decyl Methacrylate) Copolymer Membranes. Electroanalysis.
    Source Title
    Electroanalysis
    DOI
    10.1002/elan.201700510
    ISSN
    1040-0397
    School
    Fuels and Energy Technology Institute
    URI
    http://hdl.handle.net/20.500.11937/65739
    Collection
    • Curtin Research Publications
    Abstract

    © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Synchrotron radiation-valence band spectroscopy (SR-VBS) has been utilized in a study of redox molecule valence states implicated in the electron hopping mechanism of ethynylferrocene in unplasticized poly(methyl methacrylate)-poly(decyl methacrylate) [PMMA-PDMA] membranes. In this communication, it is revealed that, at high concentrations of ethynylferrocene, there are observable Fe 3d valence states that are likely linked to electron hopping between ferrocene moieties of neighbouring redox molecules. Furthermore, electrochemically induced stratification of ethynylferrocene in an oxidized PMMA-PDMA membrane produces a gradient of Fe 3d states toward the buried interface at the glassy carbon/PMMA-PDMA membrane enabling electron hopping and electrochemical reactivity of dissolved ethynylferrocene across this buried film.

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