Development of intermediate-temperature solid oxide fuel cells for direct utilization of hydrocarbon fuels

In this study, we compare the performance of solid oxide fuel cells (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...

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Bibliographic Details
Published in:Solid state ionics 2004-11, Vol.175 (1), p.47-50
Main Authors: Lu, C., An, S., Worrell, W.L., Vohs, J.M., Gorte, R.J.
Format: Article
Language:English
Subjects:
Copper-ceria anodes
Intermediate temperature
n-butane
Solid oxide fuel cells
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Summary:In this study, we compare the performance of solid oxide fuel cells (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 H 2 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.
ISSN:0167-2738
1872-7689
DOI:10.1016/j.ssi.2004.09.019