Synthesis of cobalt ferrite nanocrystallites by the forced hydrolysis method and investigation of their magnetic properties

Effect of Zn Substitution on the Magnetic Properties of Cobalt Ferrite Nano Particles Prepared Via Sol-Gel Route

“…The hysteresis loop for the as obtained sample exhibits no hysteresis, which may be attributed to superparamagnetic relaxation. The saturation magnetization of the annealed samples of CoFe 2 O 4 at 1000℃ is ~84 emu/g, which is in good agreement with the reported values [13,14].…”

Synthesis and microstructure of cobalt ferrite nanoparticles

“…Nanoparticles of cobalt ferrites were also obtained by simple ball milling [21], or combustion method [22]. Soft chemical syntheses, like sol gel [23,24], or more recently a glycothermal process [25] were developed in order to elaborate very small superparamagnetic nanoparticles of cobalt ferrites. The profusion of syntheses in the literature is explained by the dependence of the nanoferrites magnetic properties on the preparation methods [26].…”

Dependence of magnetic properties on crystallite size of CoFe2O4nanoparticles synthesised by auto-combustion method

“…Various methods, including co-precipitation [7,8], hydrothermal synthesis [9,10], sol-gel techniques [11], microemulsion method [12,13], forced hydrolysis method [14] and sonochemical reaction [15], have been reported for preparing CoFe 2 O 4 . Most of these methods suffer with troublesome post-treatment and cannot be applied to a large-scale and economic production.…”