| High performance Gd3+ and Y3+ co-doped ceria-based electrolytes for intermediate temperature solid oxide fuel cells | |
| Guan, Xiangfeng ; Zhou, Heping ; Liu, Zhihui ; Wang, Yanan ; Zhang, Jun | |
| 2010-05-10 ; 2010-05-10 | |
| 关键词 | oxides impedance spectroscopy electron microscopy electrical properties IONIC-CONDUCTIVITY LATTICE-PARAMETERS SOFC SM COPRECIPITATION CE1-XSMXO2-X/2 COMBUSTION POWDERS SYSTEM LA Materials Science, Multidisciplinary |
| 中文摘要 | Co-doped ceria of Ce1-xGdx-yYyO2-0.5x, wherein x = 0.15 and 0.2, 0 <= y <= x, were prepared by glycine-nitrate method. Their structures and ionic conductivities were characterized by X-ray diffraction (XRD) and AC impedance spectroscopy (IS). All the electrolytes were found to be ceria-based solid solutions of fluorite type structures. Co-doping was found to effectively enhance the conductivity. In comparison to the singly doped ceria, the co-doped ceria showed much higher ionic conductivities at 673-973 K. At 773 K, the ionic conductivity of Ce0.8Gd0.05Y0.15O1.9 is 0.013 S cm(-1) which is three times as high as that of Ce0.8Gd0.2O1.9. These Gd3+ and Y3+ co-doped ceria are ideal electrolyte materials of intermediate temperature solid oxide fuel cells (SOFCs). (C) 2007 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 ; 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD ; OXFORD ; THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/20905]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Guan, Xiangfeng,Zhou, Heping,Liu, Zhihui,et al. High performance Gd3+ and Y3+ co-doped ceria-based electrolytes for intermediate temperature solid oxide fuel cells[J],2010, 2010. |
| APA | Guan, Xiangfeng,Zhou, Heping,Liu, Zhihui,Wang, Yanan,&Zhang, Jun.(2010).High performance Gd3+ and Y3+ co-doped ceria-based electrolytes for intermediate temperature solid oxide fuel cells.. |
| MLA | Guan, Xiangfeng,et al."High performance Gd3+ and Y3+ co-doped ceria-based electrolytes for intermediate temperature solid oxide fuel cells".(2010). |
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