EFFECT OF IONIC-RADII OF DOPANTS ON MIXED IONIC-CONDUCTION (H++O2-) IN BACEO3-BASED ELECTROLYTES

被引：140

作者：

IWAHARA, H

YAJIMA, T

USHIDA, H

机构：

[1] Synthetic Crystal Research Laboratory, School of Engineering, Nagoya University, Chikusa-ku, Nagoya, 464-01, Furo-cho

来源：

SOLID STATE IONICS | 1994年 / 70卷

关键词：

D O I：

10.1016/0167-2738(94)90321-2

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：

Using various kinds of trivalent dopants, perovskite-type oxide solid solutions composed of BaCe1-MxO3-alpha were synthesized and their conduction properties at high temperature were studied electrochemically. These oxides showed mixed conduction of protons and oxide ions under fuel cell condition. The transference number of proton decreased and that of oxide ion increased as the radius of dopant cation M3+ grows large. The reason for it is discussed in relation to lattice parameters of orthorhombic crystal and easiness of migration of oxide ion through it.

引用

页码：267 / 271

页数：5

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