Ceria-yttria-based solid electrolytes for intermediate temperature solid oxide fuel cell

被引：0
|
作者：
Dudek, M [1 ]
Molenda, J [1 ]
机构：
[1] AGH Univ Sci & Technol, Fac Mat Sci & Ceram, PL-30059 Krakow, Poland
来源：
MATERIALS SCIENCE-POLAND | 2006年 / 24卷 / 01期
关键词：
ceria; solid electrolyte; electrical properties; mechanical properties; zirconia;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Pure ceria and ceria-yttria solid solution powders with formula Ce1-xYxO2, where 0 < x < 0.30 were prepared by the coprecipitation-calcination method. The samples were sintered at 1250-1600 degrees C for 2 hours. The XRD method was used to determine cell parameters of the samples. Their electrical properties were investigated by ac impedance spectroscopy in the temperature range of 100-700 degrees C in air. It was found that the electrical conductivity, fracture toughness, and flexural strength of the samples increase with yttria concentration and reach a maximum for Ce0.85Y0.15O2. The obtained material seems to be a promising solid electrolyte for IT-SOFC.
引用
收藏
页码：45 / 52
页数：8
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