Mechanism of Calcium Stannate Crystallization in Sub- and Supercritical Water Fluids

Mechanism of Calcium Stannate Crystallization in Sub- and Supercritical Water Fluids Научная публикация

Журнал

Russian Journal of Physical Chemistry B
ISSN: 1990-7923 , E-ISSN: 1990-7931

Вых. Данные

Год: 2025, Том: 19, Номер: 8, Страницы: 1774-1780 Страниц : 7 DOI: 10.1134/s1990793126700065

Авторы

Garanin D.K. ^1,2 , Bogdan T.V. ^1,2 , Ivakin Yu.D. ^1,2 , Tararushkin E.V. ² , Bogdan V.I. ²

Организации

1	Faculty of Chemistry, Moscow State University, Moscow, 119991 Russia
2	Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, 119991 Russia

The treatment of tin and calcium oxides in a subcritical steam medium (270°C) and a supercritical water fluid medium (400°C) in an autoclave leads to the formation of CaSn(OH)6 and CaSnO3 crystals, correspondingly. The mechanism of interaction during the formation of new phases in a water fluid medium, which is based on an increase in solid-phase mobility in the hydrated areas of surface of solid reactants, is discussed. It is this difference that distinguishes synthesis of mixed oxide in a water fluid medium from the ordinary hydrothermal method, where the components interact in an aqueous solution. The potential energy function used for molecular dynamics simulation of the interaction of CaSn(OH)6 with water at 25 and 270°C is calculated by the density functional theory method.

Garanin D.K. , Bogdan T.V. , Ivakin Y.D. , Tararushkin E.V. , Bogdan V.I.
Mechanism of Calcium Stannate Crystallization in Sub- and Supercritical Water Fluids
Russian Journal of Physical Chemistry B. 2025. V.19. N8. P.1774-1780. DOI: 10.1134/s1990793126700065 OpenAlex

Гаранин Д.К. , Богдан Т.В. , Ивакин Ю.Д. , Тарарушкин Е.В. , Богдан В.И.
Механизм кристаллизации станната кальция в суб- и сверхкритическом водном флюиде
Сверхкритические флюиды: теория и практика. 2025. №4. С.68-78. DOI: 10.34984/SCFTP.2025.20.4.007 OpenAlex

Поступила в редакцию:	28 окт. 2025 г.
Принята к публикации:	5 дек. 2025 г.

≡ OpenAlex:

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