The Effect of a CGO Barrier Layer on the Performance of LSM/YSZ SOFC Cathodes

Kent Kammer Hansen, Mohan Menon, Jesper Knudsen, Nikolaos Bonanos, Mogens Bjerg Mogensen

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    Abstract

    LSM/YSZ (Strontium substituted Lanthanum Manganite/Yttria Stabilised Zirconia) SOFC (Solid Oxide Fuel Cell) composite electrodes were fabricated with slurry spraying on both sides on either pure YSZ electrolyte foils or YSZ electrolyte foils with a CGO (Cerium-Gadolinium Oxide) barrier layer made by spin coating. Electrochemical impedance spectroscopy (EIS) was used to evaluate the performance of the LSM/YSZ composite electrodes. It was shown that the CGO barrier layer affects both the performance of the LSM/YSZ composite electrodes and the series resistance of the cells. This indicates that the cathode-electrolyte interface and the barrier layer-electrolyte interface have a large influence on the performance of LSM/YSZ composite electrodes.
    Original languageEnglish
    JournalJournal of The Electrochemical Society
    Volume157
    Issue number3
    Pages (from-to)B309-B313
    ISSN0013-4651
    DOIs
    Publication statusPublished - 2010

    Bibliographical note

    Copyright The Electrochemical Society, Inc. [2010]. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS).

    Keywords

    • Solid Oxide Fuel Cells
    • Fuel Cells and hydrogen

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