ACTIVITY OF BI2O3 IN BI2O3-Y2O3 OXYGEN ION CONDUCTOR

被引:5
|
作者
HUANG, KQ [1 ]
WANG, CZ [1 ]
XU, XG [1 ]
机构
[1] UNIV SCI & TECHNOL,DEPT PHYS CHEM,SOLID STATE ION LAB,BEIJING 100083,PEOPLES R CHINA
关键词
D O I
10.1016/0022-4596(92)90088-D
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Dense bodies (>96% theoretical density) of Bi2O3Y2O3 oxygen ion conductor in the compositional range 50-85 mol% Bi2O3 were prepared. The activities of Bi2O3 in this system were measured using a solid electrolyte galvanic cell. The results show that the activity of Bi2O3 with 70 mol% Bi2O3 at 871 K is 0.084, and the equilibrium oxygen partial pressures are 10-15 to 10-16 atm, which are one or two orders of magnitude lower than that of pure Bi2O3 at the corresponding temperature. © 1992.
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页码:206 / 209
页数:4
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