The Influence of Synthesis Temperature on the Structure, Composition and Magnetic Properties of Nanocomposites NiCo/C

Muratov, D.G.; Kozhitov, L.V.; Emelyanov, S.G.; Yakushko, E.V.; Bulatov, M.F.

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Title	The Influence of Synthesis Temperature on the Structure, Composition and Magnetic Properties of Nanocomposites NiCo/C
Authors	Muratov, D.G. Kozhitov, L.V. Emelyanov, S.G. Yakushko, E.V. Bulatov, M.F.
ORCID
Keywords	Metal-carbon nanocomposites Nanoparticles NiCo Magnetic properties of nanoparticles IR-heating
Type	Article
Date of Issue	2015
URI	http://essuir.sumdu.edu.ua/handle/123456789/44491
Publisher	Sumy State University
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Citation	D.G. Muratov, L.V. Kozhitov, S.G. Emelyanov, et al., J. Nano- Electron. Phys. 7 No 4, 04071 (2015)
Abstract	By method of IR-pyrolysis the precursor of polyacrylonitrile and compounds of cobalt and nickel metalcarbon nanocomposites were obtained, representing nanoparticles of alloy NiCo, dispersed in nanocrystalline carbon matrix. NiCo / C nanocomposites are ferromagnets. Magnetization and the coercive force depends on the size and composition of the alloy nanoparticles NiCo. The average size of metal nanoparticles is determined by the synthesis temperature and in range of 350-800 °C is 10-80 nm, respectively. According to the results of TEM it was detected that with increasing synthesis temperature the maximum synthesis of nanoparticles size distribution shifts to larger sizes. The magnetization and coercivity depend on the size and composition of the nanoparticles of alloy NiCo. With increasing synthesis temperature from 350 to 800 °C the magnetization increases from 0.055 to 17 A·m2/kg.
Appears in Collections:	Журнал нано- та електронної фізики (Journal of nano- and electronic physics)