Calcium doped ceria-based materials for cost-effective intermediate temperature solid oxide fuel cells

• This paper studies preparation and characterization of the calcium doping ceria (CCO) and carbonate composite materials. The material preparation was performed based on an oxalate co-precipitation. Various material characterizations were carried on the material phase structure based on XRD, TG/DSC and their fuel cell applications. The CCO materials showed a two-phase composite with very high ionic conductivity, 0.01 to 0.5 S cm(-1) between 400 and 700degreesC. Using the CCO-composites as the electrolytes for intermediate temperature solid oxide fuel cells (ITSOFC) a high performance, e.g., 600 mW cm(-2) was demonstrated at 600degreesC.

Nyckelord

ceria

calcium doping ceria

ceria-composite

intermediate temperature

solid oxide fuel cells (SOFCs)

electrolytes

performance

anode

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