Study of Phase Formation Processes during Oxidation of Amorphous Boron and Boron Modified with Vanadium Pentoxide using a Synchrotron Radiation Source
V. G. Shevchenko1, D. A. Eselevich1, V. N. Krasilnikov1, A. V. Konyukova1, Z. S. Vinokurov2
1Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia
2Shared Use Center «Siberian Circular Photon Source "SKlF"» Boreskov Institute of Catalysis of Siberian Branch of the Russian Academy of Sciences, Koltsovo, Russia
Keywords: boron powders, surface modification, vanadium pentoxide, oxidation, reactivity, phase analysis, synchrotron radiation
Abstract
The oxidation properties of unmodified boron powders and boron modified with vanadium pentoxide gels were studied using X-ray phase analysis (XPA) using a synchrotron radiation source at a heating rate of 10°C/min in air. It was established that the mechanism underlying the activation of boron oxidation by vanadium pentoxide is the ability of vanadium pentoxide to transfer electrons and deliver oxygen to the boron surface upon dissolution in molten B2O3.
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