Evaluation of (Ba0.5Sr0.5)(0.85)Gd0.15Co0.8Fe0.2O3-delta cathode for intermediate temperature solid oxide fuel cell
文献类型：期刊论文
| 作者 | Z. Q. Li ; B. Wei ; Z. Lu ; Y. H. Zhang ; K. F. Chen ; J. P. Miao ; W. H. Su |
| 刊名 | Ceramics International
 |
| 出版日期 | 2012 |
| 卷号 | 38期号:4页码:3039-3046 |
| ISSN号 | 0272-8842 |
| 关键词 | Solid oxide fuel cells (SOFCs) BSGCF Thermogravimetric analysis Thermal expansion Electrical conductivity perovskite-type oxides electrochemical properties composite cathode it-sofcs doped ba0.5sr0.5co0.8fe0.2o3-delta electrical-properties oxygen electrodes performance conductivity la1-xsrxcoo3-delta |
| 中文摘要 | A perovskite-type (Ba0.5Sr0.5)(0.85)Gd0.15Co0.8Fe0.2O3-delta (BSGCF) oxide has been investigated as the cathode of intermediate temperature solid oxide fuel cells (IT-SOFCs). Coulometric titration, thermogravimetry analysis, thermal expansion and four-probe DC resistance measurements indicate that the introduction of Gd3+ ions into the A-site of Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) leads to the increase in both oxygen nonstoichiometry at room temperature and electrical conductivity. For example, the conductivity of BSGCF is 148 S cm(-1) at 507 degrees C, over 4 times as large as that of BSCF. Furthermore, the electrochemical activity toward the oxygen reduction reaction is also enhanced by the Gd doping. Impedance spectra conducted on symmetrical half cells show that the interfacial polarization resistance of the BSGCF cathode is 0.171 Omega cm(2) at 600 degrees C, smaller than 0.297 Omega cm(2) of the BSCF cathode. A Ni/Sm0.2Ce0.8O1.9 anode-supported single cell based on the BSGCF cathode exhibits a peak power density of 551 mW cm(-2) at 600 degrees C. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/60087]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Z. Q. Li,B. Wei,Z. Lu,et al. Evaluation of (Ba0.5Sr0.5)(0.85)Gd0.15Co0.8Fe0.2O3-delta cathode for intermediate temperature solid oxide fuel cell[J]. Ceramics International,2012,38(4):3039-3046. |
| APA | Z. Q. Li.,B. Wei.,Z. Lu.,Y. H. Zhang.,K. F. Chen.,...&W. H. Su.(2012).Evaluation of (Ba0.5Sr0.5)(0.85)Gd0.15Co0.8Fe0.2O3-delta cathode for intermediate temperature solid oxide fuel cell.Ceramics International,38(4),3039-3046. |
| MLA | Z. Q. Li,et al."Evaluation of (Ba0.5Sr0.5)(0.85)Gd0.15Co0.8Fe0.2O3-delta cathode for intermediate temperature solid oxide fuel cell".Ceramics International 38.4(2012):3039-3046. |
入库方式： OAI收割
来源：金属研究所
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