A study on PrMnO3-based perovskite oxides used in SOFC cathodes

被引：31
|
作者：
Huang, XQ
Pei, L
Liu, ZG
Lu, Z
Sui, Y
Qian, ZN
Su, WH [1 ]
机构：
[1] Harbin Inst Technol, Ctr Condensed Matter Sci & Technol, Harbin 150001, Peoples R China
[2] Jilin Univ, Dept Phys, Changchun 130023, Peoples R China
[3] Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2002年 / 345卷 / 1-2期
关键词：
oxide materials; electrode materials; solid state reaction; electrochemical reactions;
D O I：
10.1016/S0925-8388(02)00411-5
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：
Two series of samples Pr1-xSrxMnO3 (x=0, 0.1, 0.2, 0.3, 0.4, 0.5) and Pr0.6-ySr0.4MnO3 (y=0, 0.01, 0.05, 0.1, 0.15, 0.2) were synthesized by a solid state reaction method. In the former series, the sample with x=0.4 exhibited the highest conductivity in the range of experimental temperature. Pr deficiency at the A site has a great effect on the properties of Pr0.6-ySr0.4MnO3 as a cathode of solid oxide fuel cells. Compared to the commonly used La0.6Sr0.4MnO3 cathode, Pr0.6-ySr0.4MnO3 has better properties of electrical conductivity, overpotential and impedance. Of all the samples, it is revealed that the one with y=0.05, Pr0.55Sr0.4MnO3 has the best performance in the measured temperature range. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：265 / 270
页数：6
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