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Synthesis, Structure, and Thermal Expansion of Triple Phosphates of Potassium–Strontium–Rare Earth Elementsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 25 августа 2021 г.
- Авторы: Pet’kov V.I., Bokov A.I., Asabina E.A., Borovikova E.Y.
- Журнал: Russian Journal of Inorganic Chemistry
- Том: 66
- Номер: 6
- Год издания: 2021
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 799
- Последняя страница: 805
- DOI: 10.1134/S0036023621060152
- Аннотация: Polycrystalline phases of variable composition KxSr12 – 2xR4 + x(PO4)12 (R = Nd, Eu, and Gd;0 ≤ x ≤ 4) with the structure of the mineral eulytite (space group I 3d) have been synthesized by evaporationof the salt solution followed by heat treatment. Their structures have been studied by X-ray powder diffractionand IR spectroscopy, and electron probe studies have been carried out. The structure of KSr10Eu5(PO4)12 hasbeen refined; it has been found that the neutral framework is formed by edge-linked metal-oxygen octahedra(K,Sr,Eu)O6 with PO4 tetrahedra located between them and attached to the octahedra by oxygen vertices. Attemperature change, phosphates expand uniformly in all directions: αа = αb = αc = (9−12) × 10−6 K−1 withoutundergoing polymorphic transitions.
- Добавил в систему: Боровикова Елена Юрьевна