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Properties of nonstoichiometric Pr0.6−xSr0.4MnO3 as the cathodes of SOFCs |
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| Authors: | Xiqiang Huang Jiang Liu Zhe Lu Wei Liu Li Pei Tianmin He Zhiguo Liu Wenhui Su |
| Affiliation: | a Physics Department of Jilin University, 119 Jiefang Road, Changchun 130023, People's Republic of China b Key Lab of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130023, People's Republic of China c International Center for Material Physics, Academia, Sinica, Shenyang 110015, People's Republic of China |
| Abstract: | A series of samples Pr0.6−xSr0.4MnO3 (x=0, 0.01, 0.05, 0.1, 0.15, 0.2) were synthesized by a solid state reaction method. Pr deficiency at the A site has a great effect on the properties of Pr0.6−xSr0.4MnO3 as the cathode of SOFCs (solid oxide fuel cells). Compared to the commonly used La0.6Sr0.4MnO3 and La0.55Sr0.4MnO3 cathode, Pr0.6−xSr0.4MnO3 is better in the properties of conductivity, overpotential and impedance. In all the samples, the one with x=0.05, Pr0.55Sr0.4MnO3, revealed the best performance in the measured temperature range. |
| Keywords: | SOFC Cathode Pr0.6−xSr0.4MnO3 Nonstoichiometry |
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