Phase composition and magnetic properties of Ni1-xCoxFe2O4 nanocrystals with spinel structure, synthesized by Co-precipiation
https://doi.org/10.17586/2220-8054-2017-8-3-371-377
Abstract
Nanopowders of nickel ferrite doped with cobalt were synthesized by co-precipitation using a 3 % KOH solution as a precipitant. The effects of different annealing regimes on the composition and particle size of Ni1−xCoxFe2O4 were studied. It was established that with annealing at t = 1000 ◦C for 2 h single-phase products were formed with a crystallite size of 30–50 nm. The saturation magnetization and the coercive force increased as the content of the dopant increased from 50.3 emu/g and 51.94 Oe for NiFe2O4 to 80.45 emu/g and 848.32 Oe for CoFe2O4.
About the Authors
Anh Tien Nguyen
Ho Chi Minh City Pedagogical University
Viet Nam
Viet Nam
Ho Chi Minh City
Tien Dat Nguyen
Ho Chi Minh City Pedagogical University
Viet Nam
Viet Nam
Ho Chi Minh City
V. O. Mittova
Burdenko Voronezh State Medical University
Russian Federation
Russian Federation
Voronezh 394036
M. V. Berezhnaya
Voronezh State University
Russian Federation
Russian Federation
Voronezh 394018
I. Ya. Mittova
Voronezh State University
Russian Federation
Russian Federation
Voronezh 394018
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Review
For citations:
Nguyen A.T., Nguyen T.D., Mittova V.O., Berezhnaya M.V., Mittova I.Ya. Phase composition and magnetic properties of Ni1-xCoxFe2O4 nanocrystals with spinel structure, synthesized by Co-precipiation. Nanosystems: Physics, Chemistry, Mathematics. 2017;8(3):371-377. https://doi.org/10.17586/2220-8054-2017-8-3-371-377
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