Synthesis and properties of precipitated cobalt ferrite nanoparticles

57Fe Mössbauer spectrum of CoFe2O4 nanoparticles obtained by precipitation of mixed Co(OH)2/2Fe(OH)3 hydroxide at pH 5.2 and subsequent hydrothermal treatment of precipitated hydroxide suspension at 160 °C for 24 h (left). Field dependence of magnetic moments of these CoFe2O4 nanoparticles at different temperatures with the inset of the temperature dependence of remanent magnetization Mrem (M at 0 T) and saturation moment Msat (M at 9 T) (right).320