Lu, C.An, SungbaeVohs, John MWorrell, Wayne L.Gorte, Raymond J2023-05-222023-05-222004-11-302006-02-01https://repository.upenn.edu/handle/20.500.14332/5860In 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.Intermediate temperatureSolid oxide fuel cellsCopper-ceria anodesn-butaneArticle