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Preparation and structure and performance examination of double-layer LSM/LSM plus YSZ composite electrodes
Lu, ZG; Jiang, Y; Yan, JW; Dong, YL; Zhang, YH
关键词Sofc Composite Lsm Electrodes Double-layer Electrodes Ac Impedance
刊名ACTA PHYSICO-CHIMICA SINICA
2000-10-01
DOI10.3866/PKU.WHXB20001014
16期:10页:941-947
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]OXIDE FUEL-CELL ; CATHODES
英文摘要Single layer LSM + YSZ and double layers LSM/LSM + YSZ composite electrodes with varying YSZ content in the LSM + YSZ layer have been prepared. The electrochemical properties and microstructures of the electrodes were investigated and compared. The electrochemical performance of the single layer LSM +YSZ electrodes was improved when a certain amount of YSZ was added due to the increase of the: three phase boundaries (TPB) by the addition of YSZ, while excessive YSZ addition (60%) caused a decrease in performance, because the in-phase resistance of the electrode increased so high, leading to a reduced effective electrode area. The problem was eliminated by a double-layer LSM/LSM + YSZ composite electrode, in which a pure LSM layer functioned as a current collector and reduced the in-phase resistance. As a result, both large TPB area and low ohmic resistance were assured in this kind structure. At 1223 K, the double-layer composite electrode with 50 wt. % YSZ has the lowest polarization resistance of 0.3 Omega .cm(2).
语种英语
WOS记录号WOS:000168532200014
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/138793
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
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GB/T 7714
Lu, ZG,Jiang, Y,Yan, JW,et al. Preparation and structure and performance examination of double-layer LSM/LSM plus YSZ composite electrodes[J]. ACTA PHYSICO-CHIMICA SINICA,2000,16(10):941-947.
APA Lu, ZG,Jiang, Y,Yan, JW,Dong, YL,&Zhang, YH.(2000).Preparation and structure and performance examination of double-layer LSM/LSM plus YSZ composite electrodes.ACTA PHYSICO-CHIMICA SINICA,16(10),941-947.
MLA Lu, ZG,et al."Preparation and structure and performance examination of double-layer LSM/LSM plus YSZ composite electrodes".ACTA PHYSICO-CHIMICA SINICA 16.10(2000):941-947.
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