Electrochemical Characterization of Ni/(Sc)YSZ Electrodes

Tania Ramos, Karl Tor Sune Thydén, Mogens Bjerg Mogensen

    Research output: Contribution to journalConference articleResearchpeer-review

    Abstract

    Investigations of Ni/(Sc)YSZ cermets for solid oxide cells (SOCs) were performed by electrochemical impedance spectroscopy (EIS), under varying experimental conditions and upon redox cycling, using three different designs of symmetric cells. The deconvolution and fitting of the obtained impedance spectra was performed using a combination of distribution of relaxation times (DRT) and complex non-linear least squares fitting routine (CNLS). The exhibited behaviours allowed the attribution of each contribution to a specific process, and correlated with production methods and microstructural parameters. Initial degradation results for both Ni/ScYSZ and Ni/YSZ based anodes under very high steam content are also reported. ©2010 COPYRIGHT ECS - The Electrochemical Society
    Original languageEnglish
    JournalE C S Transactions
    Volume28
    Issue number11
    Pages (from-to)123-139
    ISSN1938-5862
    DOIs
    Publication statusPublished - 2010
    Event217th ECS Meeting - Vancouver, Canada
    Duration: 25 Apr 201030 Apr 2010
    Conference number: 217
    http://www.electrochem.org/meetings/biannual/217/217.htm

    Conference

    Conference217th ECS Meeting
    Number217
    Country/TerritoryCanada
    CityVancouver
    Period25/04/201030/04/2010
    Internet address

    Keywords

    • Solid Oxide Fuel Cells
    • Fuel Cells and Hydrogen

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