Abstract
Layered perovskite PrBa0.5Sr0.5CoCuO5+δ (PBSCCo) oxide is synthesized by EDTA–citrate complexing method and investigated as a novel cathode material for intermediate-temperature solid oxide fuel cells (IT-SOFCs). X-ray diffraction results show that PBSCCo is chemical compatible with Gd0.1Ce0.9O1.95 (GDC) electrolyte below 950°C. The thermal expansion coefficient of PBSCCo is 17.58×10−6K−1 between 30°C and 900°C. The maximum electrical conductivity of PBSCCo is 483Sсm−1 at 325°C. The polarization resistance of PBSCCo cathode on GDC electrolyte is as low as 0.06Ωcm2 at 800°C. The maximum power density of the electrolyte-supported single cell with PBSCCo cathode achieves 521mWcm−2 at 800°C. Preliminary results indicate that PBSCCo is a potential cathode material for application in IT-SOFCs.
Published Version
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