najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2024-15-1-115-121najo-72Research ArticleCHEMISTRY AND MATERIAL SCIENCEХИМИЯ И МАТЕРИАЛОВЕДЕНИЕSynthesis of strontium fluoride nanoparticles in a microreactor with intensely swirling flowsСинтез наночастиц фторида стронция в микрореакторе с интенсивно закрученными потокамиhttps://orcid.org/0000-0003-3571-5770АбиевР. Ш.AbievR. Sh.

Rufat Sh. Abiev – Institute of Silicate Chemistry I. V. Grebenshchikov RAS; St. Petersburg State Institute of Technology.

Makarova emb. 2, St. Petersburg, 199034; Moskowsky Pr. 26, St. Petersburg, 190013

abiev.rufat@gmail.comhttps://orcid.org/0000-0002-9056-0823ЗдравковА. В.ZdravkovA. V.

Andrey V. Zdravkov

Makarova emb. 2, St. Petersburg, 199034

a.v.zdravkov@gmail.comhttps://orcid.org/0000-0003-2555-4969КудряшоваЮ. С.KudryashovaYu. S.

Yuliya S. Kudryashova

Makarova emb. 2, St. Petersburg, 199034

kadulinajul@mail.ruhttps://orcid.org/0000-0001-7874-7284АлександровА. А.AlexandrovA. A.

Александр Александрович Александров

Alexander A. Alexandrov

Vavilova str. 38, Moscow, 119991

alexandrov1996@yandex.ruhttps://orcid.org/0000-0002-7669-1106КузнецовС. В.KuznetsovS. V.

Sergey V. Kuznetsov

Vavilova str. 38, Moscow, 119991

kouznetzovsv@gmail.comhttps://orcid.org/0000-0002-2918-3926ФёдоровП. П.FedorovP. P.

Pavel P. Fedorov – Prokhorov General Physics Institute of the Russian Academy of Sciences,

Vavilova str. 38, Moscow 119991

ppfedorov@yandex.ruInstitute of Silicate Chemistry I.V. Grebenshchikov RAS; St. Petersburg State Institute of TechnologyRussian FederationInstitute of Silicate Chemistry I.V. Grebenshchikov RASRussian FederationProkhorov General Physics Institute of the Russian Academy of SciencesRussian Federation202431052025151115121Copyright © Abiev R.S., Zdravkov A.V., Kudryashova Y.S., Alexandrov A.A., Kuznetsov S.V., Fedorov P.P., 20252025Абиев Р.Ш., Здравков А.В., Кудряшова Ю.С., Александров А.А., Кузнецов С.В., Фёдоров П.П.Abiev R.S., Zdravkov A.V., Kudryashova Y.S., Alexandrov A.A., Kuznetsov S.V., Fedorov P.P.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/72

The technique of micromixing was used for synthesis of SrF2 nanopowders in a microreactor with intensely swirling flows. The chemical reaction between aqueous solutions of strontium nitrate (C(Sr(NO3)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 SrF2 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 ∼ 20 to ∼ 30 nm.

Метод микроперемешивания использован для синтеза нанопорошков SrF2 в микрореакторе с интенсивно закрученными потоками. Химическую реакцию между водными растворами нитрата стронция (CmSr(NO3)2 = 0,15-0,45М) и фторида калия (CmKF = 0,3-0,9М) проводили в микрореакторе с интенсивно закрученными потоками. Расход реагента составлял 1,5-3,5 л/мин. Были получены коллоидные растворы, при отстаивании которых были выделены порошки SrF2. Частицы не имеют кристаллографической огранки. Увеличение скорости потока реагента мало влияет на размер областей когерентного рассеяния D, тогда как увеличение концентрации растворов приводит к увеличению D от ~ 20 до ~ 30 нм.

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The authors declare that there are no conflicts of interest present.