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篇目详细内容 |
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【篇名】 |
Solid-state synthesis and properties of SmCoO3 |
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【刊名】 |
Frontiers of Chemistry in China |
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【刊名缩写】 |
Front. Chem. China |
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【ISSN】 |
1673-3495 |
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【EISSN】 |
1673-3614 |
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【DOI】 |
10.1007/s11458-006-0065-2 |
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【出版社】 |
Higher Education Press and Springer-Verlag |
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【出版年】 |
2006 |
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【卷期】 |
1
卷4期 |
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【页码】 |
398-401
页,共
4
页 |
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【作者】 |
Liu Runru;
Xu Dapeng;
Li Shuang;
Lü Zhe;
Xue Yanfeng;
Wang Deyong;
Su Wenhui;
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【关键词】 |
SmCoO3; solid-state reaction; cathode material; structure characteristic; conductivity |
【摘要】 |
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In this paper, perovskite oxide SmCoO3 was prepared by the solid-state reaction method using Co2O3 and Sm2O3 as raw materials. The structure and properties of the samples were investigated by XRD, Raman spectral techniques, and DC measurements and so on. The results of XRD and Raman spectra showed that the mixtures of Co2O3 and Sm2O3 can react to produce a single phase perovskite oxide SmCoO3 around 1353 K. The single-phase SmCoO3 changes from an insulator to a semi-conductor and transition occurs around 470 K. The thermal expansion coefficient (2.17×10?5 K?1) of the single-phase SmCoO3 is approximately equal to that of doped LaGaO3, but much bigger than that of SDC(Ce0.85Sm0.15O2) above 873 K. |
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