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

页码：899 / 902

页数：4