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X 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3−δ (X=Ba, La and Sm) and La0.75Sr0.25Cr0.5X′0.5O3−δ (X′=Mn, Fe and Al) mixed ionic–electronic conducting perovskite-based oxides have been tested as SOFC electrode materials on La 0.9 Sr 0.1 Ga 0.8 Mg 0.2 O 2.85 (LSGM) electrolytes under different atmospheres (air, oxygen, argon and dry and...
Powders of gadolinium-doped ceria solid solutions, Ce 1−x Gd x O 2−δ (x=0.05, 0.1, 0.2, 0.3 and 0.4), were prepared by a freeze-drying precursor route. Dense ceramic pellets with average grain sizes in the range of several microns were obtained after sintering at 1600°C. Cobalt nitrate was added to the powders to obtain dense ceramic samples with grain sizes in the submicrometer...
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