A conductivity and thermal gravimetric analysis of a Y-doped SrZrO3 single crystal

被引：55
作者：
Muller, J
Kreuer, KD
Maier, J
Matsuo, S
Ishigame, M
机构：
[1] MAX PLANCK INST FESTKORPERFORSCH,D-70569 STUTTGART,GERMANY
[2] TOHOKU UNIV,SCI MEASUREMENTS RES INST,SENDAI,MIYAGI 980,JAPAN
来源：
SOLID STATE IONICS | 1997年 / 97卷 / 1-4期
关键词：
Perovskite; proton conductivity; point defects; mixed conductivity;
D O I：
10.1016/S0167-2738(97)00087-8
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
From impedance spectroscopy combined with thermal gravimetric analysis (TGA), the conductivity properties and the defect chemistry of a nominally 5 mol% Y-doped SrZrO3 single crystal are derived. in the temperature range from 60 to 740 degrees C, in which the charge carrier concentrations are frozen-in, proton, hole and oxygen vacancy conductivity with migration energies of 0.47 eV, 0.84 eV and 1.0 eV dominate in different atmospheres. The proton concentration is determined consistently from the water incorporation measured by TGA and conductivity data yielding a saturation concentration of 0.08 mol%.
引用
收藏
页码：421 / 427
页数：7
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