Journal article
Gd0.6Sr0.4Fe0.8Co0.2O3-δ: A novel type of SOFC cathode
Electrochemistry, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark1
Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
Electroceramics, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark4
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.
| Language: | English |
|---|---|
| Publisher: | The Electrochemical Society |
| Year: | 2007 |
| Pages: | B119 |
| ISSN: | 19448775 , 10990062 , 21628734 and 21628726 |
| Types: | Journal article |
| DOI: | 10.1149/1.2743140 |
| ORCIDs: | Kammer Hansen, Kent and Mogensen, Mogens Bjerg |
