Investigation on size dependent structural and magnetic behavior of nickel ferrite nanoparticles prepared by sol–gel and hydrothermal methods

2009 ◽  
Vol 118 (1) ◽  
pp. 174-180 ◽  
Author(s):  
Manish Srivastava ◽  
S. Chaubey ◽  
Animesh K. Ojha
Keyword(s):  
Nickel Ferrite ◽  
Sol Gel ◽  
Magnetic Behavior ◽  
Ferrite Nanoparticles ◽  
Size Dependent ◽  
Nickel Ferrite Nanoparticles ◽  
Hydrothermal Methods

scholarly journals Influence of preparation method on structural, optical and magnetic properties of nickel ferrite nanoparticles

2017 ◽  
Vol 35 (1) ◽  
pp. 58-65 ◽  
Author(s):  
Ayaz Arif Khan ◽  
M. Javed ◽  
A. Rauf Khan ◽  
Yousaf Iqbal ◽  
Asif Majeed ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Nickel Ferrite ◽  
Sol Gel ◽  
Chemical Properties ◽  
Magnetic Behavior ◽  
Sem Images ◽  
Vis Spectroscopy ◽  
Nickel Ferrite Nanoparticles ◽  
Optical And Magnetic Properties ◽  
Co Precipitation

AbstractNanocrystalline NiFe2O4 particles were prepared by conventional sol-gel, citrate-nitrate sol-gel combustion and co-precipitation methods. The synthesized samples were annealed at 1000 °C for two hours and structural, chemical, morphological, optical and magnetic properties of nickel ferrite were investigated. The structural properties were investigated by X-ray diffraction (XRD) technique which confirmed the formation of single phase NiFe2O4 particles derived by the three methods. The chemical properties were analyzed by Fourier transform infrared (FT-IR) spectroscopy which confirmed the corresponding vibration modes in the samples. The optical properties were studied by UV-Vis spectroscopy. The morphological study of the as-synthesized samples was carried out by scanning electron microscopy (SEM). SEM images showed the agglomerated nanoparticles of NiFe2O4. The magnetic properties were investigated by vibrating sample magnetometer (VSM), which showed that the calcined samples exhibited typical magnetic behavior.

scholarly journals Preparation and Characterization of Nickel Ferrite-SiO2/Ag Core/Shell Nanocomposites

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
I. G. Blanco-Esqueda ◽  
G. Ortega-Zarzosa ◽  
J. R. Martínez ◽  
A. L. Guerrero
Keyword(s):  
Silver Nanoparticles ◽  
Nickel Ferrite ◽  
Sol Gel ◽  
Ferrite Nanoparticles ◽  
Core Shell ◽  
X Ray Diffraction ◽  
Magnetic Composites ◽  
Nickel Ferrite Nanoparticles ◽  
Gel Technique

Magnetic composites with silver nanoparticles bonded to their surface were successfully prepared using a simple chemical method. By means of a sol-gel technique, nickel ferrite nanoparticles have been prepared and coated with silica to control and avoid their magnetic agglomeration. The structural and magnetic properties of the nanoparticles were studied in function of the annealing temperature. Then, silver nanoparticles were incorporated by hydrolysis-condensation of tetraethyl orthosilicate, which contains silver nitrate on the surface of the nickel ferrite-SiO2core/shell. Samples were characterized using X-ray diffraction, IR spectroscopy, SEM, and magnetometry. Results show that the silica covered the nickel ferrite nanoparticles and the silver nanoparticles remain stable in the surface of the composite.

Microwave sintering of nickel ferrite nanoparticles processed via sol–gel method

2014 ◽  
Vol 70 (3) ◽  
pp. 400-404 ◽  
Author(s):  
M. Penchal Reddy ◽  
W. Madhuri ◽  
K. Sadhana ◽  
I. G. Kim ◽  
K. N. Hui ◽  
...  
Keyword(s):  
Nickel Ferrite ◽  
Microwave Sintering ◽  
Sol Gel ◽  
Ferrite Nanoparticles ◽  
Gel Method ◽  
Sol Gel Method ◽  
Nickel Ferrite Nanoparticles
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