| GdBaCo(2)O(5+delta)-Sm(0.2)Ce(0.8)O(1.9) composite cathodes for intermediate temperature SOFCs |
| N. Li; B. Wei; Z. Lu; X. Q. Huang; W. H. Su
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| 2011
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| 发表期刊 | Journal of Alloys and Compounds
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| ISSN | 0925-8388
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| 卷号 | 509期号:8页码:3651-3655 |
| 摘要 | The GdBaCo(2)O(5+delta)-Sm(0.2)Ce(0.8)O(1.9) (GBCO-SDC) composite cathodes were prepared, their thermogravimetric measurement, thermal expansion coefficient (TEC), electrical conductivity and electrochemical performance were studied as function of temperature and SDC content. The adjustment of TEC to electrolyte, which is one of the main problems of GBCO cathode, could be achieved to lower TEC values with more SDC addition, while maintaining reasonable high electrical conductivity. By means of DC polarization and AC impedance spectroscopy, the electrochemical performance of GBCO-SDC composite cathodes on SDC electrolyte was examined. Results indicated that the proper addition of SDC could improve the performance of GBCO cathode. The optimum content of SDC in the composite cathodes was 40 wt.% with the polarization resistance (Rp) of 1.39 Omega cm(2) at 500 degrees C, which was significantly lower than that of pure GBCO cathode (7.26 Omega cm(2)). (C) 2010 Elsevier B.V. All rights reserved. |
| 部门归属 | [li, na; wei, bo; lue, zhe; huang, xiqiang; su, wenhui] harbin inst technol, dept phys, ctr condensed matter sci & technol, harbin 150080, peoples r china. [su, wenhui] acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;wei, b (reprint author), harbin inst technol, dept phys, ctr condensed matter sci & technol, harbin 150080, peoples r china;bowei@hit.edu.cn lvzhe@hit.edu.cn
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| 关键词 | Intermediate-temperature Sofc
Composite Cathodes
Gdbaco(2)o(5+delta)
Thermal Expansion
Electrochemical Performance
Solid Oxide Fuel
gdbaco2o5+x Layered Perovskite
Thermal-expansion
Electrochemical Performance
Electrical-properties
It-sofcs
Cells
Gd
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| URL | 查看原文
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/30476
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
N. Li,B. Wei,Z. Lu,et al. GdBaCo(2)O(5+delta)-Sm(0.2)Ce(0.8)O(1.9) composite cathodes for intermediate temperature SOFCs[J]. Journal of Alloys and Compounds,2011,509(8):3651-3655.
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| APA |
N. Li,B. Wei,Z. Lu,X. Q. Huang,&W. H. Su.(2011).GdBaCo(2)O(5+delta)-Sm(0.2)Ce(0.8)O(1.9) composite cathodes for intermediate temperature SOFCs.Journal of Alloys and Compounds,509(8),3651-3655.
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| MLA |
N. Li,et al."GdBaCo(2)O(5+delta)-Sm(0.2)Ce(0.8)O(1.9) composite cathodes for intermediate temperature SOFCs".Journal of Alloys and Compounds 509.8(2011):3651-3655.
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