A higher conductivity Bi2O3-based electrolyte

被引：135
|
作者：
Jiang, NX
Wachsman, ED [1 ]
Jung, SH
机构：
[1] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA
[2] SRI Int, Mat Res Ctr, Menlo Pk, CA 94025 USA
来源：
SOLID STATE IONICS | 2002年 / 150卷 / 3-4期
关键词：
bismuth oxide; polarizability; double doping; structural stability; electrical conductivity;
D O I：
10.1016/S0167-2738(02)00291-6
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：
We have developed a Bi2O3 electrolyte doped with Dy2O3 and WO3 (DyWSB) that exhibits a higher conductivity than that of 20 mol% erbia stabilized bismuth oxide (20ESB), thus, giving it the highest conductivity of any known solid oxide electrolyte. Electrical conductivity results of the Dy-W stabilized bismuth oxide system are presented. The dopants were selected based on their polarizability and its effect on structural stability and conductivity. At 800 degreesC, the conductivity of (BiO1.5)(0.88)(DyO1.5)(0.08)(WO3)(0.04) is 0.57 S/cm (1.5 times as high as that of 20ESB), and at 500 degreesC, the conductivity is 0.043 S/cm (2 times as high as that of 20ESB). (C) 2002 Elsevier Science B.V. All rights reserved.
引用
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页码：347 / 353
页数：7
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