Crystallization from high-temperature solutions in the K2O-P2O5-V2O5-Bi2O3 system
Source abstract
Abstract
We have studied general trends of crystallization from high-temperature solutions in the K2O-P2O5-V2O5-Bi2O3 system at P/V = 0.5−2.0, K/(P + V) = 0.7−1.4, and Bi2O3 contents from 25 to 50 wt % and identified the stability regions of BiPO4, K3Bi5(PO4)6, K2Bi3O(PO4)3, and K3Bi2(PO4)3 − x (VO4) x (x = 0−3) solid solutions. The synthesized compounds have been characterized by X-ray powder diffraction and IR spectroscopy, and the structure of two solid solutions has been determined by single-crystal X-ray diffraction (sp. gr. C 2/c): K3Bi2(PO4)2(VO4), a = 13.8857(8), b = 13.5432(5), c = 6.8679(4) Å, β = 114.031(7)°; K3Bi2(PO4)1.25(VO4)1.75, a = 13.907(4), b = 13.615(2), c = 6.956(2) Å, β = 113.52(4)°.
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OpenAlex topics: Catalysis and Oxidation Reactions · Transition Metal Oxide Nanomaterials · Luminescence Properties of Advanced Materials
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References (12)
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