doped scandia stabilized zirconia systems have shown promise for use as electrolytes in intermediate temperature solid oxide fuel cells (IT-SOFC's). Sintering properties, crystal phase transformation, and electrical conductivity of the doped systems were investigated. The effect of doping from to and different sintering temperatures on the properties and performance of the electrolyte were examined. The presence of aided the sintering process and better sintering for the doped system was achieved at lower temperatures. The cubic phase was successfully stabilized at room temperature with concentrations of and sintered at . The achievement of a cubic structure depends on both the concentration and the sintering temperature. Higher electrical conductivity was achieved with doped systems than 10ScSZ below . A maximum conductivity of at was obtained for doped sample sintered at .
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April 2010
This article was originally published in
Journal of Fuel Cell Science and Technology
Research Papers
Characterization of Scandia Stabilized Zirconia Doped With Various Additions as an Intermediate Temperature Solid Oxide Fuel Cell Electrolyte
Bing Bai,
Bing Bai
SOFEC, Inc.
, 14741 Yorktown Plaza Drive, Houston, TX 77040
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Nigel M. Sammes,
Nigel M. Sammes
Department of Metallurgical and Materials Engineering,
Colorado School of Mines
, Golden, CO 80401
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Alevtina L. Smirnova,
Alevtina L. Smirnova
Department of Chemical, Materials, and Biomolecular Engineering,
University of Connecticut
, Storrs, CT 06269
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Geoff Tompsett
Geoff Tompsett
Department of Chemical Engineering,
University of Massachusetts
, Amherst, MA 01003
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Bing Bai
SOFEC, Inc.
, 14741 Yorktown Plaza Drive, Houston, TX 77040
Nigel M. Sammes
Department of Metallurgical and Materials Engineering,
Colorado School of Mines
, Golden, CO 80401
Alevtina L. Smirnova
Department of Chemical, Materials, and Biomolecular Engineering,
University of Connecticut
, Storrs, CT 06269
Geoff Tompsett
Department of Chemical Engineering,
University of Massachusetts
, Amherst, MA 01003J. Fuel Cell Sci. Technol. Apr 2010, 7(2): 021002 (7 pages)
Published Online: December 30, 2009
Article history
Received:
June 26, 2007
Revised:
June 2, 2008
Online:
December 30, 2009
Published:
December 30, 2009
Citation
Bai, B., Sammes, N. M., Smirnova, A. L., and Tompsett, G. (December 30, 2009). "Characterization of Scandia Stabilized Zirconia Doped With Various Additions as an Intermediate Temperature Solid Oxide Fuel Cell Electrolyte." ASME. J. Fuel Cell Sci. Technol. April 2010; 7(2): 021002. https://doi.org/10.1115/1.3117254
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