Journal article · Conference paper
Long-Term Stability of LSM-YSZ Based Cathodes
Department of Energy Conversion and Storage, Technical University of Denmark1
Fundamental Electrochemistry, Department of Energy Conversion and Storage, Technical University of Denmark2
Imaging and Structural Analysis, Department of Energy Conversion and Storage, Technical University of Denmark3
Mixed Conductors, Department of Energy Conversion and Storage, Technical University of Denmark4
A transmission line based model was successfully applied to study the ageing effect in LSM-YSZ cathodes after being exposed to humidified air at 900 °C for up to 3000 h. A decrease in the YSZ conductivity was correlated with the formation of the less conducting monoclinic zirconia. The amount of La2Zr2O7, present in the non-aged samples, decreases with ageing time increasing the number of active sites for charge transfer between LSM and YSZ as well as the LSM conductivity values.
| Language: | English |
|---|---|
| Year: | 2013 |
| Pages: | 2027-2036 |
| Proceedings: | 13th International Symposium on Solid Oxide Fuel Cells (SOFC-XIII) |
| ISSN: | 19386737 and 19385862 |
| Types: | Journal article and Conference paper |
| DOI: | 10.1149/05701.2027ecst |
| ORCIDs: | Jørgensen, Peter Stanley and Hansen, Karin Vels |
