Synthesis and Investigation of Novel Composite Materials Based on the CaO–Bi2O3–Fe2O3 System

The results of the study of novel composite solid electrolytes based on the CаO–Bi 2 O 3 –Fe 2 O 3 system are presented. These materials have a mixed electronic-ionic conductivity which increases with the growth of the Fe 2 O 3 content. In the (СаO) 0.26 (Bi 2 O 3 ) 0.74 –Fe 2 O 3 section, a part of...

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Bibliographic Details
Published in:Glass physics and chemistry 2018-11, Vol.44 (6), p.641-646
Main Authors: Besprozvannykh, N. V., Sinel’shchikova, O. Yu, Kuchaeva, S. K.
Format: Article
Language:English
Subjects:
Bismuth compounds
Bismuth oxides
Bismuth trioxide
Ceramics
Characterization and Evaluation of Materials
Chemical sensors
Chemistry and Materials Science
Composite materials
Composites
Electrolytic cells
Glass
Ion currents
Ions
Materials Science
Molten salt electrolytes
Natural Materials
Oxygen probes
Physical Chemistry
Solid electrolytes
Solid oxide fuel cells
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Summary:The results of the study of novel composite solid electrolytes based on the CаO–Bi 2 O 3 –Fe 2 O 3 system are presented. These materials have a mixed electronic-ionic conductivity which increases with the growth of the Fe 2 O 3 content. In the (СаO) 0.26 (Bi 2 O 3 ) 0.74 –Fe 2 O 3 section, a part of the oxygen-ionic component increases with an increase in the Fe 2 O 3 content and, in contrast, the oxygen conductivity decreases in the (СаO) 0.2 (Bi 2 O 3 ) 0.8 –BiFeO 3 section. These materials are interesting in terms of their use as elements of electrochemical devices, for example, in solid oxide fuel cells, electrolyzers for obtaining extra pure gases (oxygen, hydrogen), and electrochemical oxygen sensors.
ISSN:1087-6596
1608-313X
DOI:10.1134/S1087659618060020