Characterization of Ln(0.8)Sr(0.2)CoO(3-delta) (Ln = Gd, Nd, Pr, Sm, or Yb) as Cathode Materials for Low-Temperature SOFCs

被引：2
作者：
Choi, Jung Woon [1 ]
Kang, Ju Hyun [1 ]
Kim, Han Ji [1 ]
Yoo, Kwang Soo [1 ]
机构：
[1] Univ Seoul, Dept Mat Sci & Engn, Seoul 130743, South Korea
来源：
JOURNAL OF THE KOREAN CERAMIC SOCIETY | 2006年 / 43卷 / 12期
关键词：
SOFC; Cathode materials; Polarization resistance; Impedance; Porosity;
D O I：
10.4191/kcers.2006.43.12.758
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Perovskites with nominal compositions Ln(0.8)Sr(0.2)CoO(3-delta). (Ln = Gd, Nd, Pr, Sm, or Yb) were fabricated as cathode materials using a solid-state reaction method for low-temperature operating Solid-Oxide Fuel Cells (SOFCs). X-ray diffraction analysis and microstructure observation for the sintered samples were performed. The ac complex impedance was measured in the temperature range of 600-900 degrees C in air and fitted with a Solartron ZView program. The crystal structure, microstructure, electrical conductivity, and polarization resistance of Ln(0.8)Sr(0.2)CoO(3-delta) were characterized systematically.
引用
收藏
页码：758 / 763
页数：6
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