Non-linear Behavior for Chemical Expansion in Yttrium-doped Barium Zirconate upon Hydration

被引：12
|
作者：
Hoshino, Kenta [1 ,2 ]
Hyodo, Junji [1 ]
Yamazaki, Yoshihiro [1 ,2 ,3 ]
机构：
[1] Kyushu Univ, INAMORI Frontier Res Ctr, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan
[2] Kyushu Univ, Dept Mat Sci & Engn, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan
[3] Kyushu Univ, Kyushu Univ Platform Inter Transdisciplinary Ener, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan
来源：
CHEMISTRY LETTERS | 2021年 / 50卷 / 05期
关键词：
Proton-conducting oxides; Chemical expansion upon hydration; Non-linear behavior; PROTON CONDUCTION; SOLUBILITY; STABILITY;
D O I：
10.1246/cl.200942
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The rates of chemical expansion for 20 at% yttrium-doped barium zirconate upon hydration at 100-900 degrees C under water partial pressures of 0.008 and 0.023 atm have been studied using combined thermogravimetry and high-temperature X-ray diffractometry. Non-linear behavior for the rates of expansion as a function of proton concentration under equilibrium conditions was observed, suggesting that defect interactions impacted the chemical expansion process.
引用
收藏
页码：899 / 902
页数：4
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