najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2022-13-6-655-661najo-280Research ArticleСтатьиFormation of nanocrystalline particles on the basis of La2(Ni,Mn,Fe)2O6 variable composition phases having a structure of double perovskite under conditions of solution combustionФормирование в условиях растворного горения нанокристаллических частиц на основе фаз переменного состава La2(Ni,Mn,Fe)2O6 со структурой двойного перовскитаАверкиевД. Д.AverkievD. D.swnesli2019@gmail.comЛаринаЛ. Л.LarinaL. L.noemail@neicon.ruШевалеевскийО. И.ShevaleevskiyO. I.shevale2006@yahoo.comАльмяшеваО. В.AlmjashevaO. V.almjasheva@mail.ruФизико-технический институт имени А. Ф. Иоффе РАН; Санкт-Петербургский государственный электротехнический университет «ЛЭТИ» имени В. И. УльяноваIoffe Institute; St. Petersburg State Electrotechnical University “LETI”Институт Биохимической Физики им. Н.М. Эмануэля РАНEmanuel Institute of Biochemical Physics202206062025136655661Copyright © Averkiev D.D., Larina L.L., Shevaleevskiy O.I., Almjasheva O.V., 20252025Аверкиев Д.Д., Ларина Л.Л., Шевалеевский О.И., Альмяшева О.В.Averkiev D.D., Larina L.L., Shevaleevskiy O.I., Almjasheva O.V.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/280

Nanocrystalline particles on the basis of La2(Ni,Mn,Fe)2O6 variable composition phases of a double perovskite structure have been produced by glycine-nitrate combustion. The size of crystallites grows from 5 to 45 nm with an increase in iron content of synthesized particles. It is demonstrated that iron unevenly builds into octahedral sites of nickel and manganese ions substituting mainly manganese ions. At the same time, the dependence of double perovskite unit cell volume on the iron ions concentration is well described by Retgers’ law.

Методом глицин-нитратного горения получены нанокристаллические частицы на основе фаз переменного состава La2(Ni,Mn,Fe)2O6 со структурой двойного перовскита. Размер кристаллитов увеличивается от 5 до 45 нм с увеличением содержания железа в синтезируемых частицах. Показано, что железо неравномерно встраивается в октаэдрические позиции ионов никеля и марганца, замещая преимущественно ионы марганца. При этом зависимость объёма элементарной ячейки двойного перовскита от концентрации ионов железа хорошо описывается правилом Ретгерса.

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