Abstract
A promising perovskite oxide, Pr0.4Sr0.6Co0.19Fe0.76Mo0.05O3-σ (PSCFM), is developed as cathode material for intermediate temperature solid oxide fuel cells (IT-SOFCs). The electrical conductivity of PSCFM reaches 160.2, 212.7 and 236.7 S cm-1 in air at 800, 700 and 600°C, respectively whereas the polarization resistances are as low as 0.025, 0.06 and 0.221Ω cm2 at the corresponding temperatures. The peak power densities of an electrolyte-supported cell with wet H2 as the fuel are 0.555 and 0.442W cm-2 at 800 and 750°C, respectively, and a reasonably stable performance under 0.44 A cm-2 for over 100h at 700°C are obtained, indicating that PSCFM is a potential cathode material for IT-SOFCs.
Published Version
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