Hydrogen solubility and diffusivity in a barium cerate protonic conductor using tritium imaging plate technique

被引：7

作者：

Yamashita, K. ^{[1
]}

Otsuka, T. ^{[1
]}

Hashizume, K. ^{[1
]}

机构：

[1] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Kasuga, Fukuoka 816, Japan

来源：

SOLID STATE IONICS | 2015年 / 275卷

关键词：

Tritium; Imaging plate technique; Proton-conducting oxides; Hydrogen solubility; Diffusivity; SOLID-ELECTROLYTE; DEUTERIUM; OXIDES;

D O I：

10.1016/j.ssi.2015.02.008

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：

A tritium imaging plate technique has been applied to visualize hydrogen distribution and examine hydrogen solubility and diffusivity in a proton-conducting oxide, Y-doped BaCeO3 (BaCe0.9Y0.1O3 - alpha. Tritium charging of the BaCe0.9Y0.1O3 (-) (alpha) specimens was carried out by a gas absorption method using partially tritiated water vapor (HTO, 3 kPa, T/H similar to 10(-6)) at temperatures ranging from 673 K to 873 K for a given time. After charging, tritium distributions of the surface and cross section of the halved specimens were visualized using an imaging plate technique. From the tritium concentration and distributions of the surface and cross section, hydrogen solubility and hydrogen (tritium) diffusivity of the BaCe0.9Y0.1O3 - alpha specimens were determined. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：43 / 46

页数：4