Ion Exchange Synthesis of Zinc Aluminate
https://doi.org/10.56304/S2304487X22010084
Abstract
It has been shown that zinc aluminate nanopowder can be obtained by the ion-exchange synthesis method, in which a pre-synthesized cation-exchange material is used as a matrix and ionite serves as an auxiliary phase. The sample obtained have been studied by X-ray phase analysis, differential thermal analysis, and scanning electron microscopy. According to the X-ray diffraction data, the ZnAl2O4 crystalline phase is formed, the beginning of which corresponds to an annealing temperature of 600 °C. The monophasic structure of zinc aluminate is formed at 1000 °C as a result of ion exchange synthesis. The main diffraction maxima for samples calcined at 700 °C and above indicate the formation of a spinel structure with the space group Fd3m. According to the electron microscopy data, the average crystallite size is 26 nm. The parameters of the spinel lattice are determined. Thermogravimetric analysis has shown the thermal stability of the material in the temperature range of 30–1000 °C. Scanning electron microscopy data have demonstrated that the proposed scheme of ion-exchange synthesis with a short heat treatment makes it possible to obtain particles with a size up to 100 nm with a high degree of homogenization of the target product and a uniform accumulation of chemical elements by weight. During prolonged heat treatment, the particles are prone to agglomeration.
About the Authors
A. V. Shergin
Chelyabinsk State University
Russian Federation
Russian Federation
454021
Chelyabinsk
E. A. Belaya
Chelyabinsk State University
Russian Federation
Russian Federation
454021
Chelyabinsk
A. M. Kolmogortsev
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
115409
Moscow
D. A. Zherebtsov
South Ural State University
Russian Federation
Russian Federation
454080
Chelyabinsk
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Review
For citations:
Shergin A.V., Belaya E.A., Kolmogortsev A.M., Zherebtsov D.A. Ion Exchange Synthesis of Zinc Aluminate. Vestnik natsional'nogo issledovatel'skogo yadernogo universiteta "MIFI". 2022;11(1):80-86. (In Russ.) https://doi.org/10.56304/S2304487X22010084
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