A New Method for Synthesis of Fine Crystalline Magnesium Aluminate Spinel
- Авторы: Panasyuk G.1, Kozerozhets I.1, Danchevskaya M.2, Ivakin Y.2, Murav’eva G.2, Izotov A.1
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Учреждения:
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
- Moscow State University
- Выпуск: Том 487, № 2 (2019)
- Страницы: 218-220
- Раздел: Chemical Technology
- URL: https://journals.rcsi.science/0012-5008/article/view/154500
- DOI: https://doi.org/10.1134/S0012500819080019
- ID: 154500
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Аннотация
A new method for synthesis of high-purity fine crystalline magnesium aluminate spinel (MgAl2O4) has been proposed by treating a mixture of finely divided MgO and aluminum hydroxide (Al(OH)3) or oxyhydroxide (AlOOH) with aqueous fluid under supercritical conditions (T = 380–400°С, Р\(_{{{{{\text{H}}}_{{\text{2}}}}{\text{O}}}}\) = 22.8–23.0 MPa). It has been demonstrated that the formation of the magnesium aluminate spinel structure occurs by a solid state mechanism. The new method of synthesis makes it possible to control the size (from 20 nm to 5 µm) and shape (spherical, lamellar, or bipyramidal) of the synthesized magnesium aluminate spinel (MgAl2O4) by varying the reaction conditions.
Об авторах
G. Panasyuk
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Автор, ответственный за переписку.
Email: panasyuk@igic.ras.ru
Россия, Moscow, 119991
I. Kozerozhets
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: panasyuk@igic.ras.ru
Россия, Moscow, 119991
M. Danchevskaya
Moscow State University
Email: panasyuk@igic.ras.ru
Россия, Moscow, 119992
Yu. Ivakin
Moscow State University
Email: panasyuk@igic.ras.ru
Россия, Moscow, 119992
G. Murav’eva
Moscow State University
Email: panasyuk@igic.ras.ru
Россия, Moscow, 119992
A. Izotov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: panasyuk@igic.ras.ru
Россия, Moscow, 119991