The influence of synthesis parameters on one-step synthesized superparamagnetic cobalt ferrite nanoparticles with high saturation magnetization

2019 ◽  
Vol 473 ◽  
pp. 262-267 ◽  
Author(s):  
Oznur Karaagac ◽  
Busra Bilir Yildiz ◽  
Hakan Köçkar
Keyword(s):  
Saturation Magnetization ◽  
Cobalt Ferrite ◽  
Ferrite Nanoparticles ◽  
High Saturation Magnetization ◽  
Cobalt Ferrite Nanoparticles ◽  
Synthesis Parameters ◽  
High Saturation ◽  
One Step

Nonmetal sulfur-doped coral-like cobalt ferrite nanoparticles with enhanced magnetic properties

2016 ◽  
Vol 4 (5) ◽  
pp. 951-957 ◽  
Author(s):  
Derang Cao ◽  
Xicheng Wang ◽  
Lining Pan ◽  
Hao Li ◽  
Panpan Jing ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Saturation Magnetization ◽  
Cobalt Ferrite ◽  
Ferrite Nanoparticles ◽  
Cobalt Ferrite Nanoparticles

The saturation magnetization of sulfur-doped coral-like cobalt ferrite nanoparticles was improved to 81 emu g−1via a facile and novel calcining process.

scholarly journals Effect of bismuth substitution on magnetic properties of CoFe2O3 nanoparticles: Study of synthesize using coprecipitation method

2019 ◽  
Vol 3 (1) ◽  
pp. 9
Author(s):  
Didik Eko Saputro ◽  
Utari Utari ◽  
Budi Purnama
Keyword(s):  
Magnetic Properties ◽  
Hysteresis Loop ◽  
Saturation Magnetization ◽  
Coercive Field ◽  
Cobalt Ferrite ◽  
Ferrite Nanoparticles ◽  
Coprecipitation Method ◽  
Ion Concentration ◽  
Cobalt Ferrite Nanoparticles ◽  
Ion Substitution

<strong><span lang="EN-US">Abstract:</span></strong><span lang="EN-US"> The effect of bismuth ion substitution on the magnetic properties of cobalt ferrite nanoparticles was identified in this study. This method used in this study was coprecipitation method using 0.1 bismuth ion concentration. The results on hysteresis loop showed that the saturation magnetization of cobalt ferrite nanoparticles decreased with the substitution of bismuth ions, but the coercive field experienced the opposite. Saturation magnetization decreased from 57.97 to 51.19 emu / g, while coercive fields increased from 0.64 to 0.84 kOe.</span>

scholarly journals High saturation magnetization of γ-Fe2O3 nano-particles by a facile one-step synthesis approach

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Derang Cao ◽  
Hao Li ◽  
Lining Pan ◽  
Jianan Li ◽  
Xicheng Wang ◽  
...  
Keyword(s):  
Saturation Magnetization ◽  
Nano Particles ◽  
High Saturation Magnetization ◽  
High Saturation ◽  
One Step ◽  
Synthesis Approach

An Approach for Enhancement of Saturation Magnetization in Cobalt Ferrite Nanoparticles by Incorporation of Terbium Cation

2013 ◽  
Vol 42 (9) ◽  
pp. 2771-2783 ◽  
Author(s):  
Tahmineh Sodaee ◽  
Ali Ghasemi ◽  
Ebrahim Paimozd ◽  
Andrea Paesano ◽  
Akimitsu Morisako
Keyword(s):  
Saturation Magnetization ◽  
Cobalt Ferrite ◽  
Ferrite Nanoparticles ◽  
Cobalt Ferrite Nanoparticles

Preparation of Superparamagnetic Cobalt Ferrite Nanoparticles with High Saturation Magnetization by Temperature-Controlled Co-Precipitation Method

2021 ◽  
Vol 68 ◽  
pp. 91-102
Author(s):  
Duong Hong Quyen ◽  
Nguyen Quang Hung ◽  
Hoang Thi Kieu Nguyen
Keyword(s):  
Saturation Magnetization ◽  
Cobalt Ferrite ◽  
Magnetic Measurements ◽  
Average Particle Size ◽  
Ferrite Nanoparticles ◽  
Precipitation Method ◽  
Average Particle ◽  
Cobalt Ferrite Nanoparticles ◽  
Preparation Conditions ◽  
Ferrite Particle

In this study, the effect of reaction temperature on the properties of cobalt ferrite nanoparticles was investigated. X-ray diffraction analysis and Fourier transform infrared spectroscopy confirmed that synthesized nanoparticles are cobalt ferrite. Particle sizes and shapes were determined by a transmission electron microscope, and magnetic measurements were done using a vibrating sample magnetometer. The average particle size varies in the range of 5.7 - 10.7 nm as the temperature is raised from 30 to 80°C. With that, there is a transition from ferrimagnetic to superparamagnetic behaviors at 40°C. The critical size of cobalt ferrite nanoparticles for the superparamagnetic limit with zero coercivity is found to be around 6 nm, and its saturation magnetization value is 25.4 emu/g. This value is impressive higher compared to that in the other studies with similar preparation conditions.

scholarly journals Structural characterization and magnetic properties of undoped and copper-doped cobalt ferrite nanoparticles prepared by the octanoate coprecipitation route at very low dopant concentrations

RSC Advances ◽  
2018 ◽  
Vol 8 (67) ◽  
pp. 38621-38630 ◽  
Author(s):  
Hypolite Mathias Kamta Tedjieukeng ◽  
Patrice Kenfack Tsobnang ◽  
Roussin Lontio Fomekong ◽  
Ekane Peter Etape ◽  
Pattayil A. Joy ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Saturation Magnetization ◽  
Structural Characterization ◽  
Cobalt Ferrite ◽  
Ferrite Nanoparticles ◽  
Low Level ◽  
Cobalt Ferrite Nanoparticles ◽  
Coprecipitation Route

Low level copper-doped CoFe2O4 has been synthesized and shows an increasing of saturation magnetization up to 6% Cu, subsequently decreasing above 6%.

Observation of magnetic anomalies in one-step solvothermally synthesized nickel–cobalt ferrite nanoparticles

Nanoscale ◽  
2016 ◽  
Vol 8 (9) ◽  
pp. 5200-5213 ◽  
Author(s):  
Gopal Datt ◽  
Mousumi Sen Bishwas ◽  
M. Manivel Raja ◽  
A. C. Abhyankar
Keyword(s):  
Cobalt Ferrite ◽  
Magnetic Anomalies ◽  
Ferrite Nanoparticles ◽  
Cobalt Ferrite Nanoparticles ◽  
Nickel Cobalt ◽  
One Step
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