Abstract—
The products of reaction between ZrCl4 and NaBH4 in molten potassium bromide at 740 and 800°C under an argon pressure of 4 MPa have been characterized by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, thermogravimetry, specific surface area measurements, and elemental analysis. It has been shown that the size of the ZrB2 nanoparticles obtained at 740 and 800°C is ~20 and ~30 nm, respectively.
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ACKNOWLEDGMENTS
This work was supported by the Russian Foundation for Basic Research (project no. 17-03-00040) and carried out using equipment at the Shared Analytical Facilities Center, Institute of Problems of Chemical Physics, Russian Academy of Sciences.
We are grateful to N.N. Dremova for obtaining the electron micrographs.
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Kravchenko, S.E., Kovalev, D.Y., Korobov, I.I. et al. Preparation of ZrB2 by Reacting ZrCl4 with NaBH4 in Molten Potassium Bromide. Inorg Mater 55, 458–461 (2019). https://doi.org/10.1134/S0020168519050108
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DOI: https://doi.org/10.1134/S0020168519050108