Nano-structured (La, Sr)(Co, Fe)O3+YSZ composite cathodes for intermediate temperature solid oxide fuel cells

被引：113
作者：
Chen, Jing [1 ]
Liang, Fengli [1 ]
Liu, Lina [1 ]
Jiang, Sanping [2 ]
Chi, Bo [1 ]
Pu, Jian [1 ]
Li, Jian [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Hubei, Peoples R China
[2] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore
来源：
JOURNAL OF POWER SOURCES | 2008年 / 183卷 / 02期
关键词：
LSCF; composite cathode; IT-SOFC; nano-structured; wet impregnation;
D O I：
10.1016/j.jpowsour.2008.05.082
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A nano-structured La0.8Sr0.2Co0.5Fe0.5O3 + Y2O3 doped ZrO2 (LSCF + YSZ) composite cathode was prepared by impregnation of a I-SCIF-containing solution into porous YSZ structure presintered on the YSZ electrolyte. The result shows that the LSCF phase was formed at 700 degrees C. forming a nano-structured, effective and functional LSCF + YSZ composite cathode that not only produces high triple phase boundaries for the O-2 reduction reaction, but also provides a Structurally stable interface between the LSCF and YSZ. The electrode polarization resistance for the O-2 reduction reaction is from 0.539 to 0.047 Omega cm(2) between 600 and 750 degrees C, indicating the promising potential the LSCF + YSZ as a high performance cathode for intermediate temperature solid oxide fuel cells. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：586 / 589
页数：4
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