The paper presents a plasma-assisted generation of nanodisperse powder obtained from diatomite, a natural high-silica material. The structure and properties of the obtained material are investigated using the transmission electron microscopy, energy dispersive X-Ray spectroscopy, infrared and X-ray photoelectron spectroscopies, and Brunauer–Emmett–Teller method. It is clearly shown that the obtained SiO2 nanoparticles are spherical, polydisperse and represented in the form of agglomerates. The specific surface of this nanopowder is 32 m2/g. Thermodynamic modeling of the plasma-assisted process is used to obtain the equilibrium compositions of condensed and gaseous reaction products. The plasma process is performed within the 300–5000 K temperature range.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 2, pp. 46–50, February, 2017.
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Kosmachev, P.V., Vlasov, V.A. & Skripnikova, N.K. Structure and Properties of Sio2 Nanopowder Obtained From High-Silica Raw Materials by Plasma Method. Russ Phys J 60, 249–253 (2017). https://doi.org/10.1007/s11182-017-1068-9
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DOI: https://doi.org/10.1007/s11182-017-1068-9