All-Solid-State Potassium Ion-Selective Electrode with Conducting Polymer Doped with Carbon Nanotubes and C(60) as the Ion-to-Electron Transducing Layers

Zekra Mousavi, T Han, C Kvarnstrom, Johan Bobacka, Ari Ivaska

    Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

    6 Citeringar (Scopus)

    Sammanfattning

    The conducting polymer poly(3,4,-ethylenedioxythiophene), PEDOT, doped with multi-walled carbon nanotubes and fullerenes, C(60), were used as the ion-to-electron transducing layers in all-solid-state potassium selective electrodes. The electrochemical properties of the transducing layers were studied by cyclic voltammetry and electrochemical impedance spectroscopy. Electrodes with both solid contacts showed good linear potentiometric response with almost Nernstian slope. Purging the solution with oxygen and carbon dioxide did not affect the potential stability of the electrode with the conducting polymer transducing layer. Selectivity of the electrode with the fullerene solid contact is comparable with conventional K(+) selective electrodes. Electrodes with both type of solid contacts showed good long term potential stability.
    OriginalspråkOdefinierat/okänt
    Sidor (från-till)19–26
    Antal sidor8
    TidskriftECS Transactions
    Volym19
    Utgåva6
    DOI
    StatusPublicerad - 2009
    MoE-publikationstypA1 Tidskriftsartikel-refererad

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