Thermal analysis and structural characterization of Bi4V2–xBaxO11–1.5x(0.02≤x≤0.50)
✍ Scribed by L. F. Brum Malta; Marta Eloisa Medeiros
- Publisher
- Springer Netherlands
- Year
- 2007
- Tongue
- English
- Weight
- 257 KB
- Volume
- 87
- Category
- Article
- ISSN
- 0022-5215
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📜 SIMILAR VOLUMES
The compounds Bi 4 V 2؊x Ni x O 11؊1.5x , x40.35, were prepared by solid state reaction. The phase is present at room temperature for x40.20 and the phase is stable for greater Ni concentrations. The oxygen ion vacancies in the x ؍ 0.30 phase exist in the equatorial plane of the V/Ni coordination
## Abstract The new title solid solution is synthesized by solid state reaction of stoichiometric mixtures of PbO, Bi~2~O~3~, and V~2~O~5~ (650 °C, 2 d).
A new solid solution of general formula Bi(Bi 12؊x Te x O 14 ) Mo 4؊x V 1؉x O 20 with x up to 2.5 has been prepared by simultaneous substitution of the couple Te 4؉ -V 5؉ for Bi 3؉ -Mo 6؉ in Bi 13 Mo 4 VO 34 . These materials have been studied by X-ray powder diffraction and thermal analysis, showin