A higher conductivity Bi2O3-based electrolyte

被引:138
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
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
收藏
页码:347 / 353
页数:7
相关论文
共 13 条
[1]   STRUCTURAL AND DYNAMIC STUDIES OF DELTA-BI2O3 OXIDE ION CONDUCTORS .1. THE STRUCTURE OF (BI2O3)1-X(Y2O3)X AS A FUNCTION OF X AND TEMPERATURE [J].
BATTLE, PD ;
CATLOW, CRA ;
HEAP, JW ;
MORONEY, LM .
JOURNAL OF SOLID STATE CHEMISTRY, 1986, 63 (01) :8-15
[2]   Effect of oxygen sublattice ordering on interstitial transport mechanism and conductivity activation energies in phase-stabilized cubic bismuth oxides [J].
Boyapati, S ;
Wachsman, ED ;
Jiang, NX .
SOLID STATE IONICS, 2001, 140 (1-2) :149-160
[3]   Neutron diffraction study of occupancy and positional order of oxygen ions in phase stabilized cubic bismuth oxides [J].
Boyapati, S ;
Wachsman, ED ;
Chakoumakos, BC .
SOLID STATE IONICS, 2001, 138 (3-4) :293-304
[4]   PHASE-STABILITY, PHASE-TRANSFORMATION KINETICS, AND CONDUCTIVITY OF Y2O3-BI2O3 SOLID ELECTROLYTES CONTAINING ALIOVALENT DOPANTS [J].
FUNG, KZ ;
VIRKAR, AV .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1991, 74 (08) :1970-1980
[5]  
Jiang NX, 1999, J AM CERAM SOC, V82, P3057, DOI 10.1111/j.1151-2916.1999.tb02202.x
[6]  
JIZHOU L, 2000, ATOMIC ENERGY SCI S, V34, P5
[7]  
JUNG S, IN PRESS IONICS
[8]   CONDUCTIVITY OF BI2O3-BASED OXIDE ION CONDUCTORS WITH DOUBLE STABILIZERS [J].
MENG, GY ;
CHEN, CS ;
HAN, X ;
YANG, PH ;
PENG, DK .
SOLID STATE IONICS, 1988, 28 :533-538
[9]  
Takahashi T., 1973, J. Appl. Electrochem., V3, P65, DOI [10.1007/BF01637269, DOI 10.1007/BF01637269]
[10]   HIGH OXYGEN ION CONDUCTION IN SINTERED OXIDES OF THE BI2O3-DY2O3 SYSTEM [J].
VERKERK, MJ ;
BURGGRAAF, AJ .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1981, 128 (01) :75-82