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Mechanism of the Conversion of γ-Аl2О3 Nanopowder into Boehmite under Hydrothermal Conditions

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Inorganic Materials Aims and scope

Abstract

We have developed a method for the preparation of boehmite (AlOOH) nanopowder with tailored properties (particle size from 10 to 40 nm, thermal conductivity below 0.02 W/(m K), specific surface area on the order of 65 m2/g, and loose bulk density in the range 0.02–0.04 g/cm3) by hydrothermal treatment of γ‑Аl2О3 nanopowder in a 1.5% HCl solution at 200°C. The steps of the process have been identified and it has been shown to be a solid-state (topochemical) transformation.

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Funding

This work was supported by the Russian Federation Ministry of Science and Higher Education (state research target for the Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, basic research).

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Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, 119991, Moscow, Russia

    I. V. Kozerozhets, G. P. Panasyuk, E. A. Semenov, I. L. Voroshilov, L. A. Azarova & V. N. Belan

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  1. I. V. Kozerozhets
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  2. G. P. Panasyuk
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  3. E. A. Semenov
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  4. I. L. Voroshilov
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  5. L. A. Azarova
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  6. V. N. Belan
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Correspondence to I. V. Kozerozhets.

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Translated by O. Tsarev

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Kozerozhets, I.V., Panasyuk, G.P., Semenov, E.A. et al. Mechanism of the Conversion of γ-Аl2О3 Nanopowder into Boehmite under Hydrothermal Conditions. Inorg Mater 56, 716–722 (2020). https://doi.org/10.1134/S0020168520070092

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