H-2 oxidation at the interface Ni/Sr0.995Ce0.95Y0.05O2.975

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    Abstract

    The oxidation of hydrogen at the interface of nickel and the perovskite proton conductor Sr0.995Ce0.95Y0.05O2.975 has been investigated at 800 degrees C and below in atmospheres of N-2/H-2/H2O, using a point contact electrode technique. The polarisation behaviour obtained in the anodic regime suggested the transport of a species undergoing one electron transfer. Limiting currents were dependent on the partial pressure of hydrogen, but not on that of water vapour.
    Original languageEnglish
    JournalSolid State Ionics
    Volume97
    Issue number1-4
    Pages (from-to)483-488
    ISSN0167-2738
    DOIs
    Publication statusPublished - 1997

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