Fabrication of supported Ca-doped lanthanum niobate electrolyte layer and NiO containing anode functional layer by electrophoretic deposition

Francesco Bozza, Nikolaos Bonanos

    Research output: Contribution to journalConference articleResearchpeer-review

    Abstract

    The technique of electrophoretic deposition (EPD) has been applied for the preparation of a dense calcium-doped lanthanum niobate electrolyte film. La0.995Ca0.005NbO4 (LCN) powder was suspended in a solution of acetylacetone, iodine and water. The effects of suspension composition and deposition conditions were analyzed in order to identify a suitable set of EPD process parameters. The powders were deposited on a composite substrate of LCN, NiO, binder and graphite. A dense 8 μm film of lanthanum niobate supported on a porous substrate was obtained after sintering at 1200 °C. The technique was found to be effective also for the deposition of a mixture of NiO and LCN powders which, after sintering, would form LCN/NiO anode functional layer. Electrochemical characterization of the supported LCN film was performed by applying a LCN/NiO counter electrode.
    Original languageEnglish
    JournalSolid State Ionics
    Volume213
    Pages (from-to)98-102
    ISSN0167-2738
    DOIs
    Publication statusPublished - 2012
    Event15th International Conference on Solid State Protonic Conductors - Santa Barbara, CA, United States
    Duration: 15 Aug 201019 Aug 2010

    Conference

    Conference15th International Conference on Solid State Protonic Conductors
    CountryUnited States
    CitySanta Barbara, CA
    Period15/08/201019/08/2010

    Keywords

    • Solid Oxide Fuel Cells
    • Ca-doped LaNbO4
    • Electrophoretic deposition
    • Electrolyte thick film
    • Anode functional layer

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