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Joint crystallization of KCuAl[PO4]2 and K(Al,Zn)2[(P,Si)O4]2: crystal chemistry and mechanism of formation of phosphate-silicate epitaxial heterostructureстатья
Статья опубликована в высокорейтинговом журнале
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: 16 сентября 2020 г.
- Авторы: Yakubovich O., Kiriukhina G., Shvanskaya L., Volkov A., Dimitrova O.
- Журнал: Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials
- Том: 76
- Номер: 3
- Год издания: 2020
- Издательство: International Union of Crystallography
- Местоположение издательства: United Kingdom
- Первая страница: 483
- Последняя страница: 491
- DOI: 10.1107/S2052520620005715
- Аннотация: Two novel phases, potassium copper aluminium bis(phosphate), KCuAl[PO4]2 (I), and potassium zinc aluminium bis phosphate-silicate, K(Al,Zn)2[(P,Si)O4]2 (II), were obtained in one hydrothermal synthesis experiment at 553 K. Their crystal structures have been studied using single crystal X-ray diffraction. (I) is a new member of the A+M2+M3+[PO4]2 family. Its open 3D framework built by AlO5 and PO4 polyhedra includes small channels populated by columns of CuO6 octahedra sharing edges, and large channels where K+ ions are deposited. It is assumed that the stability of this structure type is due to the pair substitution of Cu/Al with Ni/Fe, Co/Fe or Mg/Fe in different representatives of the series. From the KCuAl[PO4]2 structural features, one may suppose it is a potentially electrochemically active material and/or possible low-temperature antiferromagnetic. In accordance with results obtained from X-ray diffraction data, using scanning electron microscopy, microprobe analysis and detailed crystal chemical observation, (II) is considered as a product of epitaxial intergrowth of phosphate KAlZn[PO4]2 and silicate KAlSi[SiO4]2 components having closely similar crystal structures. The assembly of ‘coherent intergrowth’ is described in the framework of a single diffraction
- Добавил в систему: Якубович Ольга Всеволодовна