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Investigation of LSM1.1-ScSZ composite cathodes for anode-supported solid oxide fuel cells
Wang, ZW; Cheng, MJ; Dong, YL; Zhang, M; Zhang, HM; Cheng MJ(程谟杰); Cheng MJ(程谟杰)
关键词Scsz Lsm1.1 Composite Cathode Anode-supported Sofcs
刊名SOLID STATE IONICS
2005-11-15
DOI10.1016/j.ssi.2005.07.013
176期:35-36页:2555-2561
收录类别SCI
文章类型Article
部门归属3
项目归属302,303
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical ; Physics, Condensed Matter
研究领域[WOS]Chemistry ; Physics
关键词[WOS]ELECTROCHEMICAL PERFORMANCE ; POLARIZATION BEHAVIOR ; CURRENT COLLECTOR ; O-2 REDUCTION ; SOFC ; ELECTROLYTES ; INTERFACE ; CONDUCTIVITY ; ELECTRODES ; IMPEDANCE
英文摘要La0.8Sr0.2Mn1.1O3 (LSM1.1)-10 mol% Sc2O3-Stabilized ZrO2 co-doped with CeO2 (ScSZ) composite cathodes were investigated for anode-supported solid oxide fuel cells (SOFCs) with thin 8 mol% Y2O3-stabilized ZrO2 (YSZ) electrolyte. X-ray diffraction (XRD) results indicated that the ScSZ electrolytes displayed good chemical compatibility with the nonstoichiometric LSM1.1 against co-firing at 1300 degrees C. Increasing the CeO2 content in the ScSZ electrolytes dramatically suppressed the electrode polarization resistance, which may be related to the improved surface oxygen exchange or the enlarged active area of cathode. The 5Ce10ScZr was the best electrolyte for the composite cathodes, which caused a small ohmic resistance decrease and the reduced polarization resistance and brought about the highest cell performance. The cell performances at lower temperatures seemed to rely on the electrode polarization resistance more seriously, than the ohmic resistance. Compared with the cell impedance at higher temperatures, the higher the 5Ce10ScZr proportion in the composite cathodes, the smaller the increment of the charge transfer resistance at lower temperatures. The anode-supported SOFC with the LSM1.1-5Ce10ScZr (60:40) composite cathode achieved the maximum power densities of 0.82 W/cm(2) at 650 degrees C and 2.24 W/cm(2) at 800 degrees C, respectively. (c) 2005 Elsevier B.V. All rights reserved.
语种英语
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WOS记录号WOS:000233260500004
引用统计
被引频次:27[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/93275
专题中国科学院大连化学物理研究所
通讯作者Cheng MJ(程谟杰); Cheng MJ(程谟杰)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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GB/T 7714
Wang, ZW,Cheng, MJ,Dong, YL,et al. Investigation of LSM1.1-ScSZ composite cathodes for anode-supported solid oxide fuel cells[J]. SOLID STATE IONICS,2005,176(35-36):2555-2561.
APA Wang, ZW.,Cheng, MJ.,Dong, YL.,Zhang, M.,Zhang, HM.,...&程谟杰.(2005).Investigation of LSM1.1-ScSZ composite cathodes for anode-supported solid oxide fuel cells.SOLID STATE IONICS,176(35-36),2555-2561.
MLA Wang, ZW,et al."Investigation of LSM1.1-ScSZ composite cathodes for anode-supported solid oxide fuel cells".SOLID STATE IONICS 176.35-36(2005):2555-2561.
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