Structure and conductivity of the Gd0.8Sr0.2Co1-xMnxO3 (x=0-1.0) system

被引：3

作者：

Phillipps, M ^{[1
]}

Sammes, N ^{[1
]}

Takeda, Y ^{[1
]}

Yamamoto, O ^{[1
]}

机构：

[1] MIE UNIV,FAC EDUC,DEPT CHEM,TSU,MIE 514,JAPAN

来源：

DENKI KAGAKU | 1996年 / 64卷 / 06期

关键词：

Perovskite; gadolinium cobaltite; solid oxide fuel cell;

D O I：

10.5796/kogyobutsurikagaku.64.544

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Gd0.8Sr0.2Co1-xMnxO3 (x = 0.0-1.0) was studied as a possible candidate for use as a cathode in a solid oxide fuel cell(SOFC). The distorted perovskite system Gd0.8Sr0.2Co1-xMnxO3 showed orthorhombic structure of the GdFeO3 type, for x = 0.0 to 1.0. Electrical conductivities of dense sintered samples were measured from room temperature to 900 degrees C, and Gd0.8Sr0.2Co0.9Mn0.1O3 showed the highest conductivity of around 250 S cm(-1) at 870 degrees C. The thermal expansion behavior of the Mn rich compositions, however, showed the best compatibility for use with an yttria stabilized zirconia electrolyte for SOFC applications.

引用

页码：544 / 548

页数：5

共 17 条

[1]

CHIBA R, 1995, SOLID OXIDE FUEL CEL, V4, P482

[2]

ISSACS HS, 1982, J ELECTROCHEM SOC, V129, P436

[3] OXIDE-ION CONDUCTIVITY IN SOME SUBSTITUTED RARE-EARTH PYROZIRCONATES [J].