Gd0.6Sr0.4Fe0.8Co0.2O3-δ:: A novel type of SOFC cathode

被引：14

作者：

Hansen, K. K. ^{[1
]}

Sogaard, M. ^{[1
]}

Mogensen, M. ^{[1
]}

机构：

[1] Tech Univ Denmark, Dept Fuel Cells & Solid State Chem, Riso Natl Lab, DK-4000 Roskilde, Denmark

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2007年 / 10卷 / 08期

关键词：

D O I：

10.1149/1.2743140

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The fabrication and electrochemical activity of a type of solid oxide fuel cell (SOFC) cathode is described in this paper. In search of new cathodes a Gd0.6Sr0.4Fe0.8Co0.2O3-delta compound was synthesized using the glycine-nitrate method. It turned out that this was a two-phase compound consisting of two perovskite phases, a cubic and an orthorhombic phase, as shown by Rietveld refinements. These two phases were synthesized and a cone-shaped electrode study was undertaken. It was shown that the composite cathode had an electrochemical activity superior to that of the two single-phase perovskites, indicating that the unique microstructure of this type of cathode is essential for achieving high electrochemical activity toward the reduction of oxygen in a SOFC.

引用

页码：B119 / B121

页数：3

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