Effect of Cathode Materials on the Performance of Single Chamber Solid Oxide Fuel Cells and Module
Ceria electrolyte containing 20% samarium (SDC) was prepared by sintering pressed specimens at 1500 C in air. A Ni-SDC anode was screen printed on the specimens and sintered at 1450 C. Cathodes of LaSrCoFeO, containing 0-30 wt% SDC, were then screen printed on the opposite side of the electrodes and sintered at 1000 C. The electrochemical properties of the cells was measured in a mixture of 90% air, 10% propane at temperatures of 500-650 C, using Pt and Au mesh as current collectors. Catalytic reaction of the fuel at the electrodes generated a voltage, which decreased with decreasing SDC content in the cathode. The overpotential resistance also decreased with decreasing SDC content. A two-cell module generated 1.5 V open circuit voltage with a maximum current of approximately 50 mA at 550 C.
F. Dogan et al., "Effect of Cathode Materials on the Performance of Single Chamber Solid Oxide Fuel Cells and Module," Ceramic Transactions, American Ceramic Society, Jan 2005.
Materials Science and Engineering
Keywords and Phrases
Accumulators; Cathodes; Electrolytic Cells; Open Circuit Voltage; Sintering; Solid Fuel Cells
Article - Conference proceedings
© 2005 American Ceramic Society, All rights reserved.