Structure and electric properties of BaCe0.77 − xZrxGd0.2Cu0.03O3 − δ

Absract In the present work, samples with the composition of BaCe 0.77 − x Zr x Gd 0.2 Cu 0.03 O 3 − δ ( x = 0, 0.1…0.7, 0.77) were synthesized according to the standard solid state technique. The effect of zirconium oxide on the phase character, structure, and conductivity was studied using the met...

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Bibliographic Details
Published inRussian journal of electrochemistry Vol. 47; no. 12; pp. 1404 - 1410
Main Authors Medvedev, D. A., Gorbova, E. V., Demin, A. K., Antonov, B. D.
Format Journal Article
LanguageEnglish
Published Dordrecht SP MAIK Nauka/Interperiodica 2011
Subjects
Chemistry
Chemistry and Materials Science
Electrochemistry
Physical Chemistry
BaCeO
density
sintering
conductivity
BaZrO
phase composition
CuO
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Summary:Absract In the present work, samples with the composition of BaCe 0.77 − x Zr x Gd 0.2 Cu 0.03 O 3 − δ ( x = 0, 0.1…0.7, 0.77) were synthesized according to the standard solid state technique. The effect of zirconium oxide on the phase character, structure, and conductivity was studied using the methods of X-ray diffraction analysis, scanning electron microscopy, and four-probe method, accordingly. Stability of these materials in the flow of carbon dioxide was studied. The results show that introduction of zirconium oxide leads to preservation of a single-phase system ( x ≤ 0.6), a decrease in the grain size, and an increase in stability in the CO 2 atmosphere.
ISSN:1023-1935
1608-3342
DOI:10.1134/S1023193511090138