Formation of nanocrystalline BiFeO3 under hydrothermal conditions
- Авторлар: Proskurina O.1,2, Tomkovich M.1, Bachina A.2, Sokolov V.1, Danilovich D.2, Panchuk V.3, Semenov V.3, Gusarov V.1
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Мекемелер:
- Ioffe Institute
- St. Petersburg State Institute of Technology (Technical University)
- St. Petersburg State University
- Шығарылым: Том 87, № 11 (2017)
- Беттер: 2507-2515
- Бөлім: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/221543
- DOI: https://doi.org/10.1134/S1070363217110019
- ID: 221543
Дәйексөз келтіру
Аннотация
The formation of bismuth orthoferrite under hydrothermal conditions at temperature 160, 180, or 200°С and pressure 100 MPa in aqueous solution of potassium hydroxide has been studied. The determined composition and structure of polycrystalline phase with sillenite structure have evidenced its formation at the interface of the crystallites of amorphous iron oxide. It has been shown that the formation of polycrystalline round-shaped BiFeO3 particles with size about 20 μm occurs via aggregation of perovskite-type phase crystallites (38–70 nm). Pycnometric density of BiFeO3 and the amorphous phase has been determined, and Mossbauer spectra reflecting the state of iron in the phases coexisting during the formation of BiFeO3 have been analyzed.
Негізгі сөздер
Авторлар туралы
O. Proskurina
Ioffe Institute; St. Petersburg State Institute of Technology (Technical University)
Хат алмасуға жауапты Автор.
Email: proskurinaov@mail.ru
Ресей, ul. Politekhnicheskaya 26, St. Petersburg, 194021; St. Petersburg
M. Tomkovich
Ioffe Institute
Email: proskurinaov@mail.ru
Ресей, ul. Politekhnicheskaya 26, St. Petersburg, 194021
A. Bachina
St. Petersburg State Institute of Technology (Technical University)
Email: proskurinaov@mail.ru
Ресей, St. Petersburg
V. Sokolov
Ioffe Institute
Email: proskurinaov@mail.ru
Ресей, ul. Politekhnicheskaya 26, St. Petersburg, 194021
D. Danilovich
St. Petersburg State Institute of Technology (Technical University)
Email: proskurinaov@mail.ru
Ресей, St. Petersburg
V. Panchuk
St. Petersburg State University
Email: proskurinaov@mail.ru
Ресей, St. Petersburg
V. Semenov
St. Petersburg State University
Email: proskurinaov@mail.ru
Ресей, St. Petersburg
V. Gusarov
Ioffe Institute
Email: proskurinaov@mail.ru
Ресей, ul. Politekhnicheskaya 26, St. Petersburg, 194021
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