Perspective ceria-based solid solutions GdxBi0.2-xCe0.8O2

被引：22
|
作者：
Zagaynov, Igor V. [1 ]
Fedorov, Sergey V. [1 ]
Konovalov, Anatoly A. [1 ]
Antonova, Olga S. [1 ]
机构：
[1] AA Baikov Inst Met & Mat Sci, Leninskii Pr 49, Moscow, Russia
来源：
MATERIALS LETTERS | 2017年 / 203卷
关键词：
Ceria; Solid solution; Electrolyte; IT-SOFC; ELECTRICAL-CONDUCTIVITY; HYDROTHERMAL SYNTHESIS; DENSIFICATION; ELECTROLYTES; BI2O3; CEO2;
D O I：
10.1016/j.matlet.2017.05.100
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The series of Gd-Bi-Ce-O solid solutions were synthesized by co-precipitation method with sonication. These mesoporous nanocrystalline powders with the size of about 15 nm were used as precursors to ceramics formation, sintered at 1000 degrees C in air, for the application of materials as an electrolyte for IT-SOFC. The electrical conductivity of these materials was measured by AC impedance spectroscopy in the temperature range of 450-750 degrees C in air. It was showed that Gd0.05Bi0.15Ce0.8O2 ceramics, prepared through acetylacetonate complex, is the perspective system for this goal and has the conductivity of 5.10 (3) S/cm at 600 degrees C in air. (C) 2017 Elsevier B.V. All rights reserved.
引用
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页码：9 / 12
页数：4
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