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- W2356554709 abstract "Cathode materials Ca2-xSrxFeO5 for SOFC (solid oxide fuel cell) were prepared by solid state reaction. The structure and morphology of the electrodes were characterized by XRD and SEM,respectively. The results show that no reaction occurred between the electrode and the Sm0.8Ce0.2O1.9 (SDC)electrolyte at 1 000 ℃ and the electrode formed good contact with the electrolyte after sintered at 1 000 ℃ for 4 h. AC impedance spectroscopy measurements were used to study the cathode performance. The charge transfer process was found to be the ratelimiting step of the electrode reactions. The Ca1.95Sr0.05Fe2O5 cathode gave the polarization resistance (Rp) of 0.95 Ω.cm2 at 700 ℃ in air. Ca1.95Sr0.05Fe2O5 cathode exhibits the lowest overpotential of about 100 mV at a current density of 74 mA.cm-2 at 700 ℃ in air." @default.
- W2356554709 created "2016-06-24" @default.
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- W2356554709 date "2009-01-01" @default.
- W2356554709 modified "2023-09-23" @default.
- W2356554709 title "Electrochemical Properties of New Cathode Materials Ca_(2-x)Sr_xFeO_5 for SOFC" @default.
- W2356554709 hasPublicationYear "2009" @default.
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