| Characterization of GdBaCo2O5+delta cathode for IT-SOFCs |
| N. Li; Z. Lu; B. O. Wei; X. Q. Huang; K. F. Chen; Y. Z. Zhang; W. H. Su
|
| 2008
|
| 发表期刊 | Journal of Alloys and Compounds
 |
| ISSN | 0925-8388
|
| 卷号 | 454期号:1-2页码:274-279 |
| 摘要 | The mixed conductor GdBaCo2O5+delta (GBCO) was studied as a promising cathode candidate for IT-SOFCs. It exhibited good chemical compatibility with Sm0.2Ce0.8O1.9 (samaria-doped ceria, SDC) electrolyte as proved by XRD results. Its conductivity was about 512-290 S cm(-1) in the temperature range 500-800 degrees C. The thermal expansion coefficient (TEC) was about 20.1 x 10(-6) K-1 between 30 degrees C and 900 degrees C in air, which was similar to other cobaltite perovskite cathodes. The sintering temperature had a strong effect on the electrochemical properties of GBCO. DC polarization and ac impedance spectroscopy results confirmed that 1050 degrees C was the optimum sintering temperature. Polarization resistance values for the GBCO cathode on SDC electrolyte were 0.15 Omega cm(2) at 750 degrees C and 1.11 Omega cm(2) at 600 degrees C, respectively. (c) 2007 Published by Elsevier B.V. |
| 部门归属 | [li, na; lue, zhe; wei, b. o.; huang, xiqiang; zhang, yaohui; su, wenhui] harbin inst technol, ctr condensed matter sci & technol, harbin 150001, peoples r china. [su, wenhui] jilin univ, dept phys, changchun 130023, peoples r china. [su, wenhui] acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;li, n (reprint author), harbin inst technol, ctr condensed matter sci & technol, harbin 150001, peoples r china;lina19820610@126.com lvzhe@hit.edu.cn
|
| 关键词 | Intermediate-temperature Sofcs
Mixed Ionic-electronic Conductor
Cathode
gdbaco2o5+delta
Oxide Fuel-cells
Lanthanum Gallate Electrolyte
Electrical-properties
Composite Cathodes
Temperature Sofcs
Oxygen-transport
Performance
Sm0.5sr0.5coo3
Ceramics
Kinetics
|
| URL | 查看原文
|
| WOS记录号 | WOS:000255215000050
|
| 引用统计 |
|
| 文献类型 | 期刊论文
|
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/32882
|
| 专题 | 中国科学院金属研究所
|
推荐引用方式
GB/T 7714 |
N. Li,Z. Lu,B. O. Wei,et al. Characterization of GdBaCo2O5+delta cathode for IT-SOFCs[J]. Journal of Alloys and Compounds,2008,454(1-2):274-279.
|
| APA |
N. Li.,Z. Lu.,B. O. Wei.,X. Q. Huang.,K. F. Chen.,...&W. H. Su.(2008).Characterization of GdBaCo2O5+delta cathode for IT-SOFCs.Journal of Alloys and Compounds,454(1-2),274-279.
|
| MLA |
N. Li,et al."Characterization of GdBaCo2O5+delta cathode for IT-SOFCs".Journal of Alloys and Compounds 454.1-2(2008):274-279.
|
修改评论