Dependence of lattice constant of Ba, Co-contained perovskite oxides on atmosphere, and measurements of water content

被引：25

作者：

Hashimoto, Daiki ^{[1
]}

Han, Donglin ^{[1
]}

Uda, Tetsuya ^{[1
]}

机构：

[1] Kyoto Univ, Dept Mat Sci & Engn, Sakyo Ku, Kyoto 6068501, Japan

来源：

SOLID STATE IONICS | 2014年 / 262卷

基金：

日本学术振兴会;

关键词：

Ba0.5Sr0.5CoxFe1 (-) O-x(3) (-) (delta); PrBaCo2O5 (+) (delta); Perovskite; Hydration; Proton conduction; DOPED BARIUM ZIRCONATE; PHASE-STABILITY; PRINCIPLES;

D O I：

10.1016/j.ssi.2013.12.029

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：

In this work, water content of Ba0.5Sr0.5CoxFe1-xO3-delta and PrBaCo2O5+delta was measured by Karl Fischer titration method. Dependence of the lattice constants of Ba0.5Sr0.5Co0.8Fe0.2O3-delta and PrBaCo2O5+delta on atmosphere was investigated by high temperature X-ray diffraction (HT-XRD) measurements. The results revealed that the lattice volumes of Ba0.5Sr0.5Co0.8Fe0.2O3-delta and PrBaCo2O5+delta increased when the atmosphere was altered from O-2 to Ar, due to a release of oxygen from the lattice in a reducing atmosphere. Significantly low water contents were measured for both Ba0.5Sr0.5CoxF1-xO3-delta and PrBaCo2O5+delta by Karl Fischer titration method. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：687 / 690

页数：4

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