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Comprehensive Dissolution Study on Two Double Ce(IV) Phosphates with Evidence of Secondary CeO2 Nanoparticle Formationстатья
- Авторы: Listova Anastasiia L., Kuzenkova Anastasiia S., Gerasimov Mikhail A., Kulikova Elizaveta S., Svetogorov Roman D., Novichkov Daniil A., Averin Alexei A., Yapaskurt Vasiliy O., Romanchuk Anna Yu, Kalmykov Stepan N., Plakhova Tatiana V.
- Журнал: Molecules
- Том: 30
- Год издания: 2025
- Издательство: MDPI
- Местоположение издательства: Basel, Switzerland
- Первая страница: 2105
- DOI: 10.3390/molecules30102105
- Аннотация: Herein, we present a comprehensive study on the dissolution behaviour of two sodium–cerium(IV) phosphate phases synthesised hydrothermally from CeO2 nanopar- ticles: crystalline Na2Ce(PO4)2 and nanocrystalline NaCe2(PO4)3. For the first time, ex- perimental dissolution data were obtained for both compounds over a wide pH range (1.5–10) under long-term equilibration. The crystalline phase undergoes pH-dependent transformation, including recrystallisation at a near-neutral pH and the formation of sec- ondary CeO2 nanoparticles above pH 7. In contrast, the nanophase NaCe2(PO4)3 exhibits exceptional structural and chemical stability, showing no signs of recrystallisation, phase transformation, or CeO2 formation, even after extended ageing. The experimental results help refine the thermodynamic stability conditions for cerium phosphate and oxide phases, providing insights into the reversible transformation pathways between CeO2 and Ce(IV) phosphates as governed by pH.
- Добавил в систему: Плахова Татьяна Вячеславовна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | molecules-30-02105.pdf | 3,8 МБ | 13 мая 2025 [PlakhovaTV] | |
| 2. | Экспертное заключение | Заключение_о_возможности_открытого_опубликования.pdf | 236,2 КБ | 15 мая 2025 [PlakhovaTV] |