Development of Intermediate-Temperature Solid Oxide Fuel Cells for Direct Utilization of Hydrocarbon Fuels

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Intermediate temperature
Solid oxide fuel cells
Copper-ceria anodes
n-butane
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Lu, C.
An, Sungbae
Worrell, Wayne L.
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In this study, we compare the performance of SOFC having composite Cu-based anodes but made with the following low-temperature electrolytes: samaria-doped ceria (SDC), Sr- and Mg-doped lanthanum gallate (LSGM), and scandia-stabilized zirconia (ScSZ). Performance (V-I) curves and impedance spectra were measured using H2 and n-butane fuels at 973 K. The results suggest that the use of electrolyte materials with higher ionic conductivity can lead to improved anodes for direct-utilization SOFC, although the performance of each of the cells in n-butane appears to be at least partially limited by the electrochemical oxidation reaction.

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2004-11-30
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Postprint version. Published in Solid State Ionics, Volume 175, Issues 1-4, 30 November 2004, pages 47-50. Publisher URL: http://dx.doi.org/10.1016/j.ssi.2004.09.019
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