高温质子导体BaZr_0.45Ce_0.45Gd_0.1O_3-δ的制备及性能

来源期刊：中国有色金属学报2008年第2期

论文作者：吕敬德 王岭 樊丽华 李跃华 戴磊 郭红霞

文章页码：307 - 307

关键词：BaZr_0.45Ce_0.45Gd_0.1O_3-δ；高温质子导体；烧结；化学稳定性；电导率

Key words：BaZr_0.45Ce_0.45Gd_0.1O_3-δ; high temperature proton conductor; sintering; chemical stability; conductivity

摘    要：

Abstract: The high temperature proton conductor BaZr_0.45Ce_0.45Gd_0.1O_3-δ was synthesized by solid-state reaction. The phase composition, microstructures and electrical conducting property of samples sintered at different temperatures were investigated by XRD, SEM and AC impedance spectroscopy. The chemical stability of specimen in boiling water and CO₂ atmosphere was tested. The results indicate that the sample sintered at 1 600 ℃ is single phase, with high density and electrical conductivity. Its conductivity at 800 ℃ reaches 0.82×10^-2 S/cm. The conducting activity energy is 0.74 eV. BaZr_0.45Ce_0.45Gd_0.1O_3-δ shows better chemical stability against carbon dioxide than boiling water.

基金信息：国家自然科学基金资助项目
唐山市科技局资助项目