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Synthesis, crystal structure, spectroscopic properties, and thermal behavior of rare-earth oxide selenates, Ln2O2SeO4 (Ln = La, Pr, Nd): The new perspectives of solid-state double-exchange synthesisстатья
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: 9 октября 2019 г.
- Авторы: Charkin Dmitri O., Karpov Andrey S., Kazakov Sergey M., Plokhikh Igor V., Zadoya Anastasiya I., Kuznetsov Alexey N., Maslakov Konstantin I., Teterin Anton Yu, Teterin Yury A., Zaloga Alexander N., Siidra Oleg I.
- Журнал: Journal of Solid State Chemistry
- Том: 277
- Год издания: 2019
- Издательство: Elsevier B.V.
- Местоположение издательства: Netherlands
- Первая страница: 163
- Последняя страница: 168
- DOI: 10.1016/j.jssc.2019.06.007
- Аннотация: Three rare-earth oxide selenates Ln2O2SeO4 (Ln = La, Pr, Nd) have been prepared via double-exchange solid-state reactions between respective LnOCl oxyhalides and potassium selenate. This approach succeeded to obtain single-phase specimens of La2O2SeO4 and Nd2O2SeO4, previously known as transients upon thermal decomposition of the corresponding selenates, as well as a new compound Pr2O2SeO4. Refinement of their crystal structures from powder X-ray diffraction data confirmed previous attributions to the grandreefite (Pb2F2SO4) structure type observed also for the Ln2O2SO4 oxide sulfates. According to polythermic X-ray studies, La2O2SeO4 is stable until at least 700 °C. All compounds were characterized by infrared and X-ray photoelectron spectroscopy.
- Добавил в систему: Маслаков Константин Игоревич