Synthesis of Vanadium Diboride Nanoparticles via Reaction of Amorphous Boron with Vanadium in KCl and Na2B4O7 Ionic Melts

— Reaction between vanadium and boron powders in the stoichiometric ratio 1 : 2 at a temperature of 800°C, argon pressure of 4 MPa, and reaction time of 32 h in Na 2 B 4 O 7 and KCl ionic melts has been studied by X-ray diffraction, energy dispersive X-ray analysis, scanning electron microscopy, X-r...

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Bibliographic Details
Published in:Inorganic materials 2019-05, Vol.55 (5), p.443-448
Main Authors: Kravchenko, S. E., Domashnev, I. A., Dremova, N. N., Vinokurov, A. A., Shilkin, S. P.
Format: Article
Language:English
Subjects:
Argon
Boron
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Infrared analysis
Infrared spectroscopy
Inorganic Chemistry
Materials Science
Melts
Nanoparticles
Photoelectrons
Reaction time
Scanning electron microscopy
Spectroscopic analysis
Spectrum analysis
Thermal analysis
Vanadium
X ray analysis
X-ray diffraction
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Summary:— Reaction between vanadium and boron powders in the stoichiometric ratio 1 : 2 at a temperature of 800°C, argon pressure of 4 MPa, and reaction time of 32 h in Na 2 B 4 O 7 and KCl ionic melts has been studied by X-ray diffraction, energy dispersive X-ray analysis, scanning electron microscopy, X-ray photoelectron spectroscopy, frustrated total internal reflection IR spectroscopy, thermal analysis, and elemental analysis. The results demonstrate that, independent of the composition and nature of the melts, the reaction yields phase-pure vanadium diboride nanoparticles with an average diameter near 90 nm.
ISSN:0020-1685
1608-3172
DOI:10.1134/S002016851905011X