Study of the structural features of ε-Co nanoparticles synthesized by cobalt carbonyl decomposition in the presence of surfactant
- Авторы: Gertsen M.A.1, Nikolaichik V.I.2, Volkov V.V.1, Avilov A.S.1, Gubin S.P.3
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Учреждения:
- Shubnikov Institute of Crystallography, Crystallography and Photonics Federal Scientific Research Center
- Institute of Microelectronics Technology and High Purity Materials
- Kurnakov Institute of General and Inorganic Chemistry
- Выпуск: Том 62, № 6 (2017)
- Страницы: 960-965
- Раздел: Nanomaterials and Crystals
- URL: https://journals.rcsi.science/1063-7745/article/view/191546
- DOI: https://doi.org/10.1134/S1063774517060128
- ID: 191546
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Аннотация
Cobalt nanoparticles (3–7 nm in size) obtained by cobalt carbonyl decomposition in 1,2-dichlorobenzene in the presence of surfactants (trioctylphosphine oxide and oleic acid) have been studied by a complex of structural methods: small-angle X-ray scattering, electron diffraction, and transmission electron microscopy. The nanoparticles synthesized are found to consist of the cubic ε-Со phase; their crystal structure is described within the sp. gr. P4132, a = 6.097 Å. Using small-angle X-ray scattering, the size and shape of nanoparticles have been determined directly in the liquid dispersion. Most of the particles have a spherical shape; their average size is ≈3.5 ± 0.5 nm, which agrees with the electron microscopy data. Possible factors causing the ε-phase formation during synthesis of metallic Co nanoparticles are discussed.
Об авторах
M. Gertsen
Shubnikov Institute of Crystallography, Crystallography and Photonics Federal Scientific Research Center
Автор, ответственный за переписку.
Email: zaporozhets_m.a@mail.ru
Россия, Moscow, 119333
V. Nikolaichik
Institute of Microelectronics Technology and High Purity Materials
Email: zaporozhets_m.a@mail.ru
Россия, Chernogolovka, Moscow oblast, 142432
V. Volkov
Shubnikov Institute of Crystallography, Crystallography and Photonics Federal Scientific Research Center
Email: zaporozhets_m.a@mail.ru
Россия, Moscow, 119333
A. Avilov
Shubnikov Institute of Crystallography, Crystallography and Photonics Federal Scientific Research Center
Email: zaporozhets_m.a@mail.ru
Россия, Moscow, 119333
S. Gubin
Kurnakov Institute of General and Inorganic Chemistry
Email: zaporozhets_m.a@mail.ru
Россия, Moscow, 119991
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