Zirconia with and Without Ceria Interlayer

3 Electrochemical Response of (La, Sr)CoOs on Zirconia with and Without Ceria Interlayer 

Although an early paper reported that the reaction between (La, Sr)Co03 and YSZ electrolyte is suppressed at reduced temperatures, a long-term operation with a model electrode clearly showed that Lao,6Sro.4Co03 reacts with YSZ 

Recently, Sakai et al. [46] reported that significant cation diffusion or second-phase segregation were observed at the interface between (La, Sr)(Co, Fe)03 and ceria-based electrolytes. Although effects on electrochemical performance are not yet clear, further details should be studied for long-term durability of intermediate-temperature electrodes. 

Perovskite-type oxides based on Mn, Co, Fe, or K2NiF4-type oxide with Ni are studied as cathode materials for SOFCs. For high-temperature SOFCs, LaMnOs-based materials are mainly used because of the high compatibility 

Yamamoto, Y. Takeda, R. Kanno, M. Noda, Solid State Ionics 22,241 (1987) 

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