Doped ceria has been pursued in the past decades as a promising electrolyte material for intermediate temperature‐solid oxide fuel cells. In this study, the effects of grain growth conditions on the densification and conductivity of Ca x Ce 1− x O 2− y ( x =0.05, 0.1, and 0.2) are systematically investigated. It has been found that the densification of Ca‐doped CeO 2 depends strongly upon the specific calcination and sintering pathway, based on which the processing windows for achieving high sintering density are established. It is demonstrated that Ca‐doped CeO 2 show competing conductivities in the intermediate temperature region compared with rare earth‐doped CeO 2 . The detailed microstructures associated with various processing pathways have also been realized in terms of microdomain, superstructure, and glassy phase.
No takes yet. Share an insight, caveat, or question.
Yan et al. (2009) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: