najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2023-14-1-112-119najo-201Research ArticleCHEMISTRY AND MATERIALS SCIENCEХИМИЯ И НАУКА О МАТЕРИАЛАХSynthesis and thermal behavior of KCe2(PO4)3, a new full-member in the AIMIV2 (PO4)3 familyСинтез и термическое поведение KCe2(PO4)3 — нового соединения в семействе AIMIV2 (PO4)3https://orcid.org/0000-0002-9757-9148КозловаТ. О.KozlovaT. O.

Москва.

Taisiya O. Kozlova,

Leninsky prospect, 31, Moscow, 119991.

taisia.shekunova@yandex.ruВасильеваД. Н.VasilyevaD. N.

Москва.

Darya N. Vasilyeva,

Leninsky prospect, 31, Moscow, 119991;

Myasnitskaya str., 20, Moscow, 101000.

dnvasileva_1@edu.hse.ruhttps://orcid.org/0000-0003-0620-8016КозловД. А.KozlovD. A.

Москва.

Daniil A. Kozlov,

Leninsky prospect, 31, Moscow, 119991;

Leninskie Gory 1, Moscow, 119991.

kozlov@inorg.chem.msu.ruhttps://orcid.org/0000-0002-4820-8498ТеплоноговаМ. А.TeplonogovaM. A.

Москва.

Mariia A. Teplonogova,

Leninsky prospect, 31, Moscow, 119991;

Leninskie Gory 1, Moscow, 119991.

m.teplonogova@gmail.comhttps://orcid.org/0000-0002-2378-7446БаранчиковА. Е.BaranchikovA. E.

Москва.

Alexander E. Baranchikov, 

Leninsky prospect, 31, Moscow, 119991.

a.baranchikov@yandex.ruhttps://orcid.org/0000-0002-4209-6034СимоненкоН. П.SimonenkoN. P.

Москва.

Nikolay P. Simonenko,

Leninsky prospect, 31, Moscow, 119991.

n_simonenko@mail.ruhttps://orcid.org/0000-0003-2343-2140ИвановВ. К.IvanovV. K.

Москва.

Vladimir K. Ivanov,

Leninsky prospect, 31, Moscow, 119991.

Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of SciencesRussian FederationKurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences; National Research University Higher School of EconomicsRussian FederationKurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences; Lomonosov Moscow State UniversityRussian Federation202305062025141112119Copyright © Kozlova T.O., Vasilyeva D.N., Kozlov D.A., Teplonogova M.A., Baranchikov A.E., Simonenko N.P., Ivanov V.K., 20252025Козлова Т.О., Васильева Д.Н., Козлов Д.А., Теплоногова М.А., Баранчиков А.Е., Симоненко Н.П., Иванов В.К.Kozlova T.O., Vasilyeva D.N., Kozlov D.A., Teplonogova M.A., Baranchikov A.E., Simonenko N.P., Ivanov V.K.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/201

Hydrothermal treatment of nanoscale amorphous ceric phosphate gel in KOH aqueous solutions was found to result in a new KCe2(PO4)3 phase. The refinement of the KCe2(PO4)3 structure showed that it was isostructural to recently reported (NH4)Ce2(PO4)3. For the KCe2(PO4)3 phase, the unit cell parameters (sp. gr. C2/c) were a = 17.3781(3) A,˚ b = 6.7287(1) A,˚ c = 7.9711(2) A,˚ β = 102.351(1) ◦, V = 910.53(4) A˚ 3, Z = 4. The thermal decomposition of KCe2(PO4)3 at 800 ◦C resulted in the mixture of crystalline CePO4 and KPO3.

Гидротермальной обработкой наноразмерного аморфного церийфосфатного геля в водном растворе KOH была получена новая фаза KCe2(PO4)3. Уточнение структуры KCe2(PO4)3 показало, что она изоструктурна с ранее описанной фазой (NH4)Ce2(PO4)3. Параметры элементарной ячейки KCe2(PO4)3 (пр. гр. C2/c) составили a = 17.3781(3) Å, b = 6.7287(1) Å, c = 7.9711(2) Å, β = 102.351(1) °, V = 910.53(4) Å3, Z = 4. Термическое разложение KCe2(PO4)3 при 800°C привело к образованию смеси кристаллических CePO4 и KPO3.

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