Preparation and characterization of Ce1−xGdxO2−δ (x=0.1–0.3) as solid electrolyte for intermediate temperature SOFC

Sintering and electrical properties of Ce 1 − x Bi x O 2 − δ solid solution

“…However, here the significantly lower activation energies were found, amounting to 0.209 (bulk -Ce 0.80-Bi 0.20 O 2Àd ) and 0.289 (grain boundary -Ce 0.80 Bi 0.20 O 2Àd ) and 0.600 eV (bulk + grain boundary -Ce 0.50 Bi 0.50 O 2Àd ). It is known that CeO 2 doped systems with 20% concentration of dopant usually achieves the highest ionic conductivity values and a minimum values of activation energies [8,34,38,39]. With a further increase in concentration of the dopant, the conductivity decreased and increases activation energy [8,34,38,39].…”

The influence of precipitation temperature on the properties of ceria–zirconia solid solution composites

“…Anjaneya et al [12] have studied the application of Gd 3+ doped (10-30 mol. %) CeO 2 materials in IT-SOFC as electrolytes through carbonate co-precipitation method at a precipitation temperature of 60 o C. Additionally, the carbonate (co)precipitation method has been used to produce CeO 2 and Ce 1-x Y x O 2-x/2 (x ≤ 0.35) solid-solutions, and the precipitation temperature is 70 o C [13].…”

Phase relations and ionic transport behaviour in new mixed oxides of ceria–zirconia–gadolinia

“…The presence of oxygen vacancies, in general, is known to possess a great influence over the response of the material to electrical stimuli [10]. Recently several studies on ionic conductivity behavior of ceria based mixed oxides have been reported [11][12][13]. However, to best of our knowledge Ce-Zr-Gd-O ternary system has not been explored for ionic conductivity.…”