| GdBaCo2O5+delta-Sm0.2Ce0.8O1.9 composite cathodes for intermediate temperature SOFCs | |
| Li, Na1; Wei, Bo1; Lue, Zhe1; Huang, Xiqiang1; Su, Wenhui1,2 | |
| Corresponding Author | Wei, Bo(bowei@hit.edu.cn) |
| 2011-02-24 | |
| Source Publication | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| ISSN | 0925-8388 |
| Volume | 509Issue:8Pages:3651-3655 |
| Abstract | The GdBaCo2O5+delta-Sm0.2Ce0.8O1.9 (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. |
| Keyword | Intermediate-temperature SOFC Composite cathodes GdBaCo2O5+delta Thermal expansion Electrochemical performance |
| Funding Organization | Natural Science Foundation of China ; Ministry of Science and Technology of China |
| DOI | 10.1016/j.jallcom.2010.12.147 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Natural Science Foundation of China[20901020] ; Ministry of Science and Technology of China[2007AA05Z139] |
| WOS Research Area | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000287570200041 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/106967 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wei, Bo |
| Affiliation | 1.Harbin Inst Technol, Dept Phys, Ctr Condensed Matter Sci & Technol, Harbin 150080, Peoples R China 2.Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Na,Wei, Bo,Lue, Zhe,et al. GdBaCo2O5+delta-Sm0.2Ce0.8O1.9 composite cathodes for intermediate temperature SOFCs[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2011,509(8):3651-3655. |
| APA | Li, Na,Wei, Bo,Lue, Zhe,Huang, Xiqiang,&Su, Wenhui.(2011).GdBaCo2O5+delta-Sm0.2Ce0.8O1.9 composite cathodes for intermediate temperature SOFCs.JOURNAL OF ALLOYS AND COMPOUNDS,509(8),3651-3655. |
| MLA | Li, Na,et al."GdBaCo2O5+delta-Sm0.2Ce0.8O1.9 composite cathodes for intermediate temperature SOFCs".JOURNAL OF ALLOYS AND COMPOUNDS 509.8(2011):3651-3655. |
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