A brief review of the ionic conductivity enhancement for selected oxide electrolytes

被引：306

作者：

Hui, Shiqiang ^{[1
]}

Roller, Justin ^{[1
]}

Yick, Sing ^{[1
]}

Zhang, Xinge ^{[1
]}

Deces-Petit, Cyrille ^{[1
]}

Xie, Yongsong ^{[1
]}

Maric, Radenka ^{[1
]}

Ghosh, Dave ^{[1
]}

机构：

[1] NRC Inst Fuel Cell Innovat, Vancouver, BC V6T 1W5, Canada

来源：

JOURNAL OF POWER SOURCES | 2007年 / 172卷 / 02期

关键词：

solid oxide electrolytes; ionic conductivity; conductivity enhancement; SOFC; GRAIN-BOUNDARY CONDUCTIVITY; SPACE-CHARGE CONDUCTION; DOPED ZIRCONIA CERAMICS; ELECTRICAL-CONDUCTIVITY; COMPOSITE ELECTROLYTE; STABILIZED ZIRCONIA; MECHANICAL-PROPERTIES; FUEL-CELL; CERIA; YTTRIA;

D O I：

10.1016/j.jpowsour.2007.07.071

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：

The advantages of lowering the operation temperature of SOFCs have attracted great interest worldwide. One of the major barriers to decreasing the operation temperature is the ohmic loss of the electrolyte. Maximizing the electrolyte ionic conductivity is of significant importance, especially in the absence of new electrolyte materials. The ionic conductivity of electrolytes can be influenced by many parameters. There has been an enormous effort in the literature for the improvement of the electrolyte ionic conductivity. From a practical point of view, this paper reviews various approaches to enhancing the ionic conductivity of polycrystalline zirconia- and ceria-based oxide electrolytes in the light of composition, microstructure, and processing. Suggestions are given for future work. Crown Copyright (c) 2007 Published by Elsevier B.V. All rights reserved.

引用

页码：493 / 502

页数：10

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