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Synthesis and performance of Sm2-xCexCuO4 cathode materials for IT-SOFC

Abstract : The samples of Sm2-xCexCuO4 (SCC, x=0.00.25) as cathode materials for intermediate temperature solid oxide fuel cell (IT-SOFC) were prepared by the glycine-nitrate process and characterized by XRD and SEM. The results showed that SCC had no reaction with electrolyte Ce0.9Gd0.1O1.9 (CGO) at 1000°C for 2 h. AC impedance spectroscopy and DC polarization measurements showed that the polarization resistance decreased with the doping of cerium in the lattice. The optimum value of SmL8Ce0.2CuO4 resulted in 0.37 ?.cm² areaspecific resistance (ASR) at 750°C in air. The charge transfer process was the rate-limiting step of the electrode reactions as indicated by the oxygen partial pressure measurement.
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Submitted on : Monday, November 23, 2009 - 10:47:40 AM
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  • HAL Id : emse-00434394, version 1


Li-Ping Sun, Li-Hua Huo, Hui Zhao, Christophe Pijolat. Synthesis and performance of Sm2-xCexCuO4 cathode materials for IT-SOFC. Chinese Journal of Inorganic Chemistry, 2007, 23 (9), pp.1545-49. ⟨emse-00434394⟩



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