Measurements and modeling of Sm0.5 Sr0.5 CoO 3-x - Ce0.9 Gd0.1 O1.95 SOFC cathodes produced using infiltrate solution additives

Jason D. Nicholas, Scott A. Barnett

    Research output: Contribution to journalArticle

    • 60 Citations

    Abstract

    Nanocomposite Sm0.5 Sr0.5 CoO3-x (SSC)- Ce0.9 Gd0.1 O1.95 (GDC) solid oxide fuel cell (SOFC) cathodes were produced by infiltrating SSC nitrate solutions into GDC scaffolds. A single infiltration of a concentrated solution resulted in a low polarization resistance of 0.1 cm2 at 600°C. Infiltrate solution additives slightly improved the SSC phase purity but did not significantly alter the SSC particle morphology/size or the infiltrated cathode polarization resistance. Polarization resistance predictions made using microstructural observations and a simple model were found to be within 35% of the experimentally measured values without the use of fitting parameters.

    Original languageEnglish (US)
    JournalJournal of the Electrochemical Society
    Volume157
    Issue number4
    DOIs
    StatePublished - 2010

    Profile

    Coumestrol
    Polarization
    polarization
    Cathodes
    Octanols
    Solid oxide fuel cells (SOFC)
    cell cathodes
    solid oxide fuel cells
    Buccal Administration
    Laryngeal Mucosa
    Anthralin
    Infiltration
    Scaffolds
    infiltration
    nitrates
    nanocomposites
    purity
    cathodes
    predictions
    Nitrates

    ASJC Scopus subject areas

    • Electrochemistry
    • Electronic, Optical and Magnetic Materials
    • Materials Chemistry
    • Surfaces, Coatings and Films
    • Renewable Energy, Sustainability and the Environment
    • Condensed Matter Physics

    Cite this

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    title = "Measurements and modeling of Sm0.5 Sr0.5 CoO 3-x - Ce0.9 Gd0.1 O1.95 SOFC cathodes produced using infiltrate solution additives",
    abstract = "Nanocomposite Sm0.5 Sr0.5 CoO3-x (SSC)- Ce0.9 Gd0.1 O1.95 (GDC) solid oxide fuel cell (SOFC) cathodes were produced by infiltrating SSC nitrate solutions into GDC scaffolds. A single infiltration of a concentrated solution resulted in a low polarization resistance of 0.1 cm2 at 600°C. Infiltrate solution additives slightly improved the SSC phase purity but did not significantly alter the SSC particle morphology/size or the infiltrated cathode polarization resistance. Polarization resistance predictions made using microstructural observations and a simple model were found to be within 35% of the experimentally measured values without the use of fitting parameters.",
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    AB - Nanocomposite Sm0.5 Sr0.5 CoO3-x (SSC)- Ce0.9 Gd0.1 O1.95 (GDC) solid oxide fuel cell (SOFC) cathodes were produced by infiltrating SSC nitrate solutions into GDC scaffolds. A single infiltration of a concentrated solution resulted in a low polarization resistance of 0.1 cm2 at 600°C. Infiltrate solution additives slightly improved the SSC phase purity but did not significantly alter the SSC particle morphology/size or the infiltrated cathode polarization resistance. Polarization resistance predictions made using microstructural observations and a simple model were found to be within 35% of the experimentally measured values without the use of fitting parameters.

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