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Article

Abstract

The electrode performance of a single solid oxide fuel cell was evaluated using a 500 μm thick La0.9Sr0.1Ga0.8Mg0.2O2.85 (LSGM) as the electrolyte membrane. Comparison of La0.6Sr0.4CoO3-δ (LSCo) and La0.9Sr0.1MnO3 (LSM) as cathodes showed LSCo gave an exchange current density two orders of magnitude higher than that of LSM. Comparison of CeO2/Ni and LSGM/Ni as anodes showed a degradation of the latter with time, and studies of the anode‐electrolyte interface and the reactivity of NiO and LSGM suggest better anode performances can be obtained with a buffer layer that prevents formation of LaNiO3 . The cell performance showed that, with a proper choice of electrode materials and LSGM as the electrolyte, a SOFC operating at temperatures 600°C < Top < 800°C is a realistic goal.

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©Journal of The Electrochemical Society 1997, The Electrochemical Society.

© The Electrochemical Society, Inc. 1997. 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). The archival version of this work was published in Journal of The Electrochemical Society.

Publisher’s Version: http://dx.doi.org/10.1149/1.1838058

Huang, K., Feng, M., Goodenough, J. B., & Milliken, C. (1997). Electrode Performance Test on Single Ceramic Fuel Cells Using as Electrolyte Sr‐ and Mg‐Doped LaGaO3. Journal of The Electrochemical Society, 144 (10), 3620 - 3624. http://dx.doi.org/10.1149/1.1838058

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