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Эта публикация цитируется в 14 научных статьях (всего в 14 статьях)
CHEMISTRY AND MATERIAL SCIENCE
Facile combustion synthesis of TbFeO$_{3}$ nanocrystals with hexagonal and orthorhombic structure
K. D. Martinsona, V. A. Ivanovb, M. I. Chebanenkoa, V. V. Panchukc, V. G. Semenovc, V. I. Popkova a Ioffe Institute, Politeknicheskaya St., 26, St. Petersburg, 194021, Russia
b Saint Petersburg State Institute of Technology, Moskovsky prospect 26, Saint Petersburg, 190013, Russia
c Saint Petersburg State University, Peterhof, 198504 Saint Petersburg, Russia
Аннотация:
In this research, the formation process of nanocrystalline terbium orthoferrite (TbFeO$_{3}$) obtained via a solution combustion technique was studied using powder X-ray diffractometry, scanning electron microscopy, $^{57}$Fe Mössbauer spectroscopy, N$_{2}$ adsorption analysis, and FTIR spectroscopy. It was shown that glycine-nitrate combustion method permits one to obtain TbFeO$_{3}$ of three different modifications: orthorhombic o-TbFeO$_{3}$ (Pbnm), hexagonal h-TbFeO$_{3}$ (P6$_{3}$/mmc) and amorphous am-TbFeO$_{3}$. It was found that the average crystallite sizes of orthorhombic and hexagonal TbFeO$_{3}$ were $29\pm3$ and $15\pm2$ nm, respectively. The formation mechanism of different structural forms of terbium orthoferrite was investigated on the basis of nanopowders morphology, specific surface areas, average pore sizes, and crystallite sizes.
Ключевые слова:
nanocrystals, rare earths, orthoferrites, terbium orthoferrite, TbFeO$_3$, phase formation, polymorphism.
Поступила в редакцию: 12.10.2019 Исправленный вариант: 04.12.2019
Образец цитирования:
K. D. Martinson, V. A. Ivanov, M. I. Chebanenko, V. V. Panchuk, V. G. Semenov, V. I. Popkov, “Facile combustion synthesis of TbFeO$_{3}$ nanocrystals with hexagonal and orthorhombic structure”, Наносистемы: физика, химия, математика, 10:6 (2019), 694–700
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/nano486 https://www.mathnet.ru/rus/nano/v10/i6/p694
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