Please use this identifier to cite or link to this item: http://essuir.sumdu.edu.ua/handle/123456789/44583
Or use following links to share this resource in social networks: Recommend this item
Title The Formation and Study of the FeCo Nanoparticles Alloy in Structure of Metal-Carbon Nanocomposites FeCo/C
Authors Kozhitov, L.V.
Bulatov, M.F.
Korovushkin, V.V.
Kostishin, V.G.
Muratov, D.G.
Shipko, M.N.
Emelyanov, S.G.
Yakushko, E.V.
ORCID
Keywords Mossbauer spectroscopy
Metal-carbon nanocomposites
FeCo Nanoparticles
XRF-analysis
IR-heating
Type Article
Date of Issue 2015
URI http://essuir.sumdu.edu.ua/handle/123456789/44583
Publisher Sumy State University
License
Citation L.V. Kozhitov, M.F. Bulatov, V.V. Korovushkin, et al., J. Nano- Electron. Phys. 7 No 4, 04103 (2015)
Abstract The study of the peculiarities of the formation of the nanoparticles FeCo-alloy in the composition of metal-carbon nanocomposites FeCo/C. Structure, phase composition and kinetic processes of synthesis of nanocomposites FeCo/C by methods of Mossbauer spectroscopy were studied. This allowed us to establish the peculiarities of formation of nanoparticles FeCo alloy in the composition of the nanocomposites. The nanocomposites were synthesized by the IR-pyrolysis at temperatures of precursors of 300 - 800 °C on the basis of polyacrylonitrile (PAN), iron acetylacetonate and cobalt acetate. Also it is established that an increase in the average size of nanoparticles FeCo with increasing temperature synthesis is occurred. In the temperature range of synthesis of 600-800 °C the size varies from 9- 10 to 16-18 nm, respectively. The features the phase transitions and phase composition of the metal-carbon nanocomposites FeCo / C were studied by Mossbauer spectroscopy. Nanocomposites were synthesized in the temperature range of T = 300-800 °C. It was shown that the samples synthesized at T = 300 °C contains of superparamagnetic nanoparticles of magnetite and amorphous oxide of iron only. The process of forming nanoparticles of alloy FeCo occurs within the temperature range 500-600 ° C due to the recovery of amorphous iron oxide and magnetite as well as them dissolving in a phase of cobalt. The growth of size of nanoparticles of alloy by agglomeration and dissolution of iron in the alloy nanoparticles occurs only at the temperature range of synthesis 600-800 ° C. This is confirmed by a decrease of the content of Fe, which associated with carbon and it is consistent with the results of phase and structural studies, carried out in previous works.
Appears in Collections: Журнал нано- та електронної фізики (Journal of nano- and electronic physics)

Views

Brazil Brazil
1
Bulgaria Bulgaria
1
Canada Canada
1
China China
731732
France France
1
Germany Germany
1462973
Hong Kong SAR China Hong Kong SAR China
1
India India
1
Iran Iran
103001
Ireland Ireland
45891
Italy Italy
1
Japan Japan
1
Lithuania Lithuania
1
Mexico Mexico
1
Russia Russia
2041
Saudi Arabia Saudi Arabia
2
Singapore Singapore
1
South Korea South Korea
1
Sweden Sweden
1
Taiwan Taiwan
2
Thailand Thailand
1
Turkey Turkey
1
Ukraine Ukraine
17333359
United Arab Emirates United Arab Emirates
2925948
United Kingdom United Kingdom
2925945
United States United States
137362485
Unknown Country Unknown Country
17333358

Downloads

China China
731735
Germany Germany
4
Greece Greece
1
India India
1
Ireland Ireland
1
Japan Japan
1
Pakistan Pakistan
1
Russia Russia
1
South Korea South Korea
1
Thailand Thailand
2
Ukraine Ukraine
51633947
United Kingdom United Kingdom
1
United States United States
137362486
Unknown Country Unknown Country
11

Files

File Size Format Downloads
Kozhitov_Mossbauer_spectroscopy.pdf 512,12 kB Adobe PDF 189728193

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.