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.
|Journal||E C S Transactions|
|Publication status||Published - 2013|
|Event||13th International Symposium on Solid Oxide Fuel Cells (SOFC-XIII) - Okinawa, Japan|
Duration: 6 Oct 2013 → 11 Oct 2013
Conference number: 13
|Conference||13th International Symposium on Solid Oxide Fuel Cells (SOFC-XIII)|
|Period||06/10/2013 → 11/10/2013|