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    Synthesis and characterization of high-integrity solid-contact polymeric ion sensors

    20867_downloaded_stream_323.pdf (1.133Mb)
    Access Status
    Open access
    Authors
    De Marco, Roland
    Jee, Elaine
    Prince, K.
    Pretsch, E.
    Bakker, Eric
    Date
    2008
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    De Marco, Roland and Jee, Elaine and Prince, Kathryn and Pretsch, Ern and Bakker, Eric. 2008. Synthesis and characterization of high-integrity solid-contact polymeric ion sensors. Journal of Solid State Chemistry.
    Source Title
    Journal of Solid State Chemistry
    DOI
    10.1007/s10008-008-0600-9
    Faculty
    Nanochemistry Research Centre
    School
    Nanochemistry Research Institute (Research Institute)
    Remarks

    The original publication is available at http://www.springerlink.com

    URI
    http://hdl.handle.net/20.500.11937/30672
    Collection
    • Curtin Research Publications
    Abstract

    High-integrity solid-contact (SC) polymeric ion sensors have been produced by using spin casting and electropolymerization techniques in the preparation of the SC employing the conductive polymer, poly(3-octylthiophene) (POT). The physical and chemical integrity of the POT SCs have been evaluated using scanning electron microscopy (SEM), atomic force microscopy (AFM), secondary ion mass spectrometry (SIMS), and X-ray photoelectron spectroscopy (XPS). Furthermore, the electrochemical stability of SC polymeric ion sensors has been investigated using electrochemical impedance spectroscopy (EIS). The results of this study demonstrate that electropolymerization and spin casting methods also comprising annealing of the synthesized SC film are capable of producing SCs that are relatively free of imperfections such as pores and pinholes. This leads to electrochemically stable and robust polymeric ion sensors where the SC/sensor interface is resistant to the formation of a detrimental water layer that normally gives rise to spurious ion fluxes and a degradation in the

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