Thermal analysis and structural characterization of Bi4V2–xBaxO11–1.5x (0.02≤x≤0.50)

This work reports the study of Bi4V2-xBaxO11-1.5x (0.02 < =x < =0.50) series, which is a potential source of solid electrolytes to apply in oxygen sensors. X-ray powder diffraction was used to point out the formation of major ionic conductive phases and minor ones. The modifications of vanadat...

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Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2007-03, Vol.87 (3), p.883-886
Main Authors: Malta, L. F. Brum, Medeiros, Marta Eloisa
Format: Article
Language:English
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Summary:This work reports the study of Bi4V2-xBaxO11-1.5x (0.02 < =x < =0.50) series, which is a potential source of solid electrolytes to apply in oxygen sensors. X-ray powder diffraction was used to point out the formation of major ionic conductive phases and minor ones. The modifications of vanadate substructure were probed, at short range, by Fourier-transform infrared spectroscopy. Differential scanning calorimetry evidenced the formation of tetragonal gamma phase, which can be ionic conductive, for x=0.14.
ISSN:1388-6150
1572-8943
DOI:10.1007/s10973-006-8203-0