Effect of calcination tempera ture on st ructural and morphological properties of cobalt ferrite na nocrystals prepared by co-precipitatio n method

In recent decades , the synthesis of nanosized ferrites with ma gnetic prop erties that differ substantially from those of macroparticles of the same composition has attracted consid erable intere st [۱-۴].Ferrit es are materials of significant importance beca use of the la rge number of technol ogical applications they find, as well as because they can be used as mod el materials and thus provide an op portunity for better unde rstanding of the magnetic interacti ons in nanos cale [۵]. Many attem pts have been made to d esign and synthesize v arious MFe۲O۴ nanostructures in or der to explore their prop erties and potential applications[۶] . Cobalt fe rrite nanoparticles have been synthe sized by a number of methods, including sol-gel [۷], s ol–gel auto-combustio n [۸], hydrothermal [۹], co-precipitation [۱۰], an d microwav e synthesis [۱۱].In this work Cobalt ferrite (CoFe۲O۴) nanoparticles have been synthesized su ccessfully b y co-precipitation method. Synthesized nanoparticles have been annealed at ۵۰۰, ۶۰۰ and ۷۰۰ÛC for ۲ hours. The eff ect of calci nations temperature in Structure and morphological properties investigate.

کلیدواژه ها:

Co-precipitation ، Calcination temperature ، CoFe۲O۴ ، Nanoparticl e.