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CHEMISTRY AND MATERIAL SCIENCE
Synthesis of strontium fluoride nanoparticles in a microreactor with intensely swirling flows
Rufat Sh. Abievab, Andrey V. Zdravkova, Yuliya S. Kudryashovaa, Alexander A. Alexandrovc, Sergey V. Kuznetsovc, Pavel P. Fedorovc a Institute of Silicate Chemistry I. V. Grebenshchikov RAS, St. Petersburg, Russia
b St. Petersburg State Institute of Technology, St. Petersburg, Russia
c Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
Аннотация:
The technique of micromixing was used for synthesis of SrF$_2$ nanopowders in a microreactor with intensely swirling flows. The chemical reaction between aqueous solutions of strontium nitrate ($C$(Sr(NO$_3$)$_2$) = 0.15 – 0.45 M) and potassium fluoride ($C$(KF) = 0.3 – 0.9 M) was realized in a microreactor with intensely swirling flows with reagent consumption 1.5 – 3.5 L/min. Colloidal solutions were obtained, during the settling of which SrF$_2$ powders were isolated without crystallographic faceting. An increase in the rate of reagent flow has negligible effect on the size of coherent scattering regions $D$, while an increase in the concentration of solutions leads to an increase in $D$ from $\sim$ 20 to $\sim$30 nm.
Ключевые слова:
strontium fluoride, precipitation, chemical reaction, micromixing.
Поступила в редакцию: 17.11.2023 Исправленный вариант: 25.12.2023 Принята в печать: 26.12.2023
Образец цитирования:
Rufat Sh. Abiev, Andrey V. Zdravkov, Yuliya S. Kudryashova, Alexander A. Alexandrov, Sergey V. Kuznetsov, Pavel P. Fedorov, “Synthesis of strontium fluoride nanoparticles in a microreactor with intensely swirling flows”, Наносистемы: физика, химия, математика, 15:1 (2024), 115–121
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/nano1253 https://www.mathnet.ru/rus/nano/v15/i1/p115
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