Properties and Performance of Cation-Doped Ceria Electrolyte Materials in Solid Oxide Fuel Cell Applications |
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| Authors: | Christopher Milliken Sivaraman Guruswamy Ashok Khandkar |
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| Affiliation: | Metallurgical Engineering Department, University of Utah, Salt Lake City, Utah 84112;Ceramatec, Inc., Salt Lake City, Utah 84119 |
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| Abstract: | Cation-doped CeO2 electrolyte has been evaluated in single-cell and short-stack tests in solid oxide fuel cell environments and applications. These results, along with conductivity measurements, indicate that an ionic transference number of ∼0.75 can be expected at 800°C. Single cells have shown a power density >350 mW/cm2. Multicell stacks have demonstrated a peak performance of >100 mW/cm2 at 700°C using metallic separators. |
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| Keywords: | solid oxide fuel cell cerium/cerium compounds dopants/doping |
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