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Composite (La, Sr)MnO 3 –YSZ cathode for SOFC

Solid State Ionics, ISSN: 0167-2738, Vol: 177, Issue: 19, Page: 2071-2074
2006
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(La, Sr)MnO 3 (LSM)–Y doped ZrO 2 (YSZ) composite was prepared using YSZ colloidal suspension (initial YSZ particle size ∼100 nm), YSZ and LSM polymer precursors on dense substrates at 800 °C annealing temperature. The results of a symmetrical LSM–YSZ composite cell test showed the area specific resistance for overpotential of 0.14 Ω cm 2 at 800 °C, which indicated that the LSM–YSZ composite could be a potential candidate for cathode in SOFCs. The performance of the cell with the LSM–YSZ composite cathode and Ni-YSZ anode was investigated and the power density of about 0.26 W cm −2 was obtained at 850 °C using hydrogen fuel.

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