Thermal, electrical, and electrochemical properties of Nd-doped Ba0.5Sr0.5Co0.8Fe0.2O3-delta as a cathode material for SOFC
文献类型：期刊论文
| 作者 | S. Y. Li ; Z. Lu ; X. Q. Huang ; W. H. Su |
| 刊名 | Solid State Ionics
 |
| 出版日期 | 2008 |
| 卷号 | 178期号:35-36页码:1853-1858 |
| 关键词 | SOFC perovskite Sm0.2Ce0.8O1.9 cathode material AC-impedance oxide fuel-cells crystal-structure performance evaluation stabilized zirconia perovskite oxide it-sofcs conductivity expansion la1-xsrxco1-yfeyo3 electrode |
| ISSN号 | 0167-2738 |
| 中文摘要 | Crystal structure, thermal expansion coefficient (TEC), electrical conductivity and AC-impedance of (Ba0.5Sr0.5) 1_xNdCo0.8Fe0.2O3-delta (BSNCF; 0.10 <= x <= 0.20) were studied in relation to their potential use as intermediate temperature solid oxide fuel cell (IT-SOFC) cathode. An emphasis is made on the effect of Nd-doping on these properties. A single cubic pervoskite were observed in the X-ray diffraction (XRD) measurement. The TEC of BSNCF values were 18.7-19.7 x 10(-6) K-1 from 30 to 800 degrees C. The electrical conductivity, which is the main defect of Ba0.5Sr0.5 Co0.8Fe0.2O3-delta (BSCF), was improved by Nd-doping, e.g. the compound of x=0.20 demonstrated a conductivity of sigma= 130 S.cm(-1) at 392 degrees C. The AC-impedance analyses were carried out on an electrolyte supported BSNCF/ Sm0.2Ce0.8O1.9 (SDC)/Ag half-cell and a BSCF/SDC/ Ag half-cell. The BSNCF cathode revealed lower polarization resistance than BSCF, e.g. at 500 degrees C, the values for the x=0.20 sample and BSCF were 1.79 Omega cm(2) and 4.52 Omega cm(2), respectively. (C) 2007 Elsevier B.V All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32893]  |
| 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 | S. Y. Li,Z. Lu,X. Q. Huang,et al. Thermal, electrical, and electrochemical properties of Nd-doped Ba0.5Sr0.5Co0.8Fe0.2O3-delta as a cathode material for SOFC[J]. Solid State Ionics,2008,178(35-36):1853-1858. |
| APA | S. Y. Li,Z. Lu,X. Q. Huang,&W. H. Su.(2008).Thermal, electrical, and electrochemical properties of Nd-doped Ba0.5Sr0.5Co0.8Fe0.2O3-delta as a cathode material for SOFC.Solid State Ionics,178(35-36),1853-1858. |
| MLA | S. Y. Li,et al."Thermal, electrical, and electrochemical properties of Nd-doped Ba0.5Sr0.5Co0.8Fe0.2O3-delta as a cathode material for SOFC".Solid State Ionics 178.35-36(2008):1853-1858. |
入库方式： OAI收割
来源：金属研究所
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