Add time:08/01/2019         Source:sciencedirect.com

Nanometric powders of doped and co-doped ceria based ceramics with spherical-like morphology and characterized by very low degree of agglomeration, were prepared by using a simple and cheap synthesis route, easily scalable on industrial level, based on an optimized co-precipitation process with AMMONIUM CARBONATE (cas 10361-29-2) as precipitating agent. The as-synthesized powders are completely converted to ceria with fluorite structure. The original morphology and the nanometric features are also preserved. Nearly perfect dense products were obtained after sintering at 1300 °C for 3 h, as by SEM and density measurements. Electrochemical measurements proved that they are all suitable as electrolytes for IT-SOFC.

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