Abstract:Oxygen permeation measurements were carried out on La 0.8 Sr 0.2 Ga 0.75 Mg 0.15 Co 0.10 O 3±δ specimens of different thickness at temperatures between 673 and 1173 K under various gradients of oxygen partial pressure. Simultaneously, the open circuit cell voltage was measured. It was shown that the investigated compositions were characterized by a high oxygen permeation rate, and, consequently, by a high electronic conductivity. The electrode polarization effect was experimentally proved, and the influence of… Show more
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