DOPED PEROVSKITE OXIDE, PRMNO3, AS A NEW CATHODE FOR SOLID-OXIDE FUEL-CELLS THAT DECREASES THE OPERATING TEMPERATURE

被引：44
作者：
ISHIHARA, T
KUDO, T
MATSUDA, H
TAKITA, Y
机构：
[1] Department of Applied Chemistry, Faculty of Engineering, Oita University, Oita, 870-11
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1994年 / 77卷 / 06期
关键词：
D O I：
10.1111/j.1151-2916.1994.tb09779.x
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：
Cathodic overpotentials of Ln0.6Sr0.4MnO3 (Ln is La, Pr, Nd, Sm, Gd, Yb, and Y) were studied for a new cathode for solid-oxide fuel cells (SOFCs) with low overpotentials in a relatively-low-temperature region. Cathodic overpotentials strongly depended on the rare-earth cations in the A sites of the perovskite oxide. In particular, overpotentials of a Sr-doped PrMnO3 cathode maintained low values despite decreased operating temperature. Consequently, almost the same power density of a SOFC with La0.6Sr0.4MnO3 cathode was obtained at about 100 K lower operating temperature by using Sr-doped PrMnO3 as the catbode.
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页码：1682 / 1684
页数：3
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