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

    Research output: Contribution to journalArticleScientificpeer-review

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    Abstract

    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.
    Original languageUndefined/Unknown
    Pages (from-to)19–26
    Number of pages8
    JournalECS Transactions
    Volume19
    Issue number6
    DOIs
    Publication statusPublished - 2009
    MoE publication typeA1 Journal article-refereed

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