Double columnar interlayer for increased cathodic activity of intermediate temperature solid oxide fuel cells

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Effects of double columnar structure interlayer film, in which tensile strain were introduced, on cathodic activity of SmCoO3 was investigated. Double columnar film of Pr2NiO4(PNCG)-Sm doped CeO2 (SDC), PrBaCo2O5.5-SDC, Sm0.6Sr0.4CoO3(SSC)- SDC, and La0.6Sr0.4FeO3-SDC were successfully prepared by PLD method and it was found that insertion of PNCG-SDC or SSC-SDC double columnar film decreased the overpotential of SSC cathode. The power density of the cell deposited on Ni-Fe porous metal substrate was higher than 3W/cm2 at 773K and impedance results suggested that the increased power density was explained by decreased cathodic overpotential. Increased diffusivity of oxide ion in double columnar film is effective for expanding reaction area resulting in the increased cathodic performance for oxide ion dissociation.

    Original languageEnglish
    Title of host publicationSolid Oxide Fuel Cells 16, SOFC 2019
    EditorsK. Eguchi, S. C. Singhal
    PublisherElectrochemical Society Inc.
    Pages1355-1362
    Number of pages8
    Edition1
    ISBN (Electronic)9781607688747
    DOIs
    Publication statusPublished - 2019
    Event16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019 - Kyoto, Japan
    Duration: Sep 8 2019Sep 13 2019

    Publication series

    NameECS Transactions
    Number1
    Volume91
    ISSN (Print)1938-6737
    ISSN (Electronic)1938-5862

    Conference

    Conference16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019
    Country/TerritoryJapan
    CityKyoto
    Period9/8/199/13/19

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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