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

被引：33

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

页码：265 / 270

页数：6

共 19 条

[1] Studies on strontium substituted rare earth manganites [J].