Formation Conditions of a Magnetically Ordered Phase ɛ-Fe2O3. A FMR in situ Study
Научная публикация
| Общая информация |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Переводная
|
| Журнал |
Journal of Structural Chemistry
ISSN: 0022-4766
, E-ISSN: 1573-8779
|
| Вых. Данные |
Год: 2013,
Том: 54,
Номер: 5,
Страницы: 876-882
Страниц
: 7
DOI:
10.1134/s0022476613050065
|
| Ключевые слова |
ferromagnetic resonance, heterogeneous catalysts, in situ, supermagnetic nanoparticles |
| Авторы |
Yakushkin S.S.
1
,
Bukhtiyarova G.A.
1
,
Martyanov O.N.
1
|
| Организации |
| 1 |
G. K. Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences
|
|
Информация о финансировании (2)
|
1
|
Министерство образования и науки Российской Федерации
|
8429
|
|
2
|
Президиум РАН
|
27.46
|
The ferromagnetic resonance (FMR) method in situ is used to study the initial stages of the formation of ε
iron oxide nanoparticles deposited on silica gel at temperatures up to 600°C. It is shown that at hightemperature
treatment of starting samples obtained by impregnation with an iron(II) sulfate solution,
supermagnetic ε-Fe2O3/SiO2 nanoparticles form with a narrow size distribution. An analysis of the FMR
data in comparison with the data of other methods enables the formulation of the formation conditions for
systems of deposited ε-Fe2O3 nanoparticles without other polymorph impurities.