Journal
ELECTROCHEMICAL AND SOLID STATE LETTERS
Volume 12, Issue 6, Pages B91-B93Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.3099321
Keywords
electrochemical electrodes; electrolytes; lanthanum compounds; solid oxide fuel cells; strontium compounds; yttrium compounds
Funding
- Natural Science Foundation of China [50672096, 50730002]
- Ministry of Science and Technology of China [2007AA05Z151]
- U.S. Department of Energy [DE-FG36-08GO88116]
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Porous yttria-stabilized bismuth oxides (YSB) were investigated as the backbones for La0.85Sr0.15MnO3-delta (LSM) infiltrated cathodes in intermediate-temperature solid oxide fuel cells. The cathodes were evaluated using anode-supported single cells with scandia-stabilized zirconia as the electrolytes. With humidified H-2 as the fuel, the cell showed peak power density of 0.33, 0.52, and 0.74 W cm(-2) at 650, 700, and 750 degrees C, respectively. At 650 degrees C, the cell polarization resistance was only 1.38 Omega cm(2), < 50% of the lowest value previously reported, indicating that YSB is a promising backbone for the LSM infiltrated cathode.
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