Nanostructured lanthanum manganate composite cathode

Wei Guo Wang, Yi-Lin Liu, Rasmus Barfod, Steen Brian Schougaard, Petru Gordes, Severine Ramousse, Peter Vang Hendriksen, Mogens Bjerg Mogensen

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    Abstract

    Anode-supported cells were fabricated with optimized cathodes showing high power density of 1.2 W/cm(2) at 800 C under a cell voltage of 0.7 V and an active area of 4 x 4 cm. A microstructure study was performed on such cell using a field-emission gun scanning electron microscope, which revealed that the (La1-xSrx)(y)MnO3 +/-delta (LSM) composite cathodes consist of a network of homogenously distributed LSM, yttria-stabilized zirconia (YSZ), and pores. The individual grain size of LSM or YSZ is approximately 100 nm. The degree of contact between cathode and electrolyte is 39% on average. (c) 2005 The Electrochemical Society.
    Original languageEnglish
    JournalElectrochemical and Solid-State Letters
    Volume8
    Issue number12
    Pages (from-to)A619-A621
    ISSN1099-0062
    DOIs
    Publication statusPublished - 2005

    Bibliographical note

    Copyright The Electrochemical Society, Inc. [2005]. 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).

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