Synthesis of high-coercivity cobalt ferrite particles using water-in-oil microemulsions

Synthesis and magnetic properties of cobalt ferrite (CoFe2O4) nanoparticles prepared by wet chemical route

“…Generally, in most types of nano-particles prepared by these methods, control of size and size distribution is not possible [1]. In order to overcome these difficulties, nanometer size reactors for the formation of homogeneous nanoparticles of cobalt ferrite are used.…”

Synthesis and characterisation of pure single-phase CoFe2O4 nanopowder via a simple aqueous solution-based EDTA-precursor route

“…Synthesis routes are commonly used for CoFe 2 O 4 are co-precipitation [10][11][12][13][14], sol-gel [15,16], *Corresponding author. Email: naren70@yahoo.com precursors [17][18][19], reverse micelle [20], microemulsion [21], hydrothermal [22], etc. However, several limitations are associated with these methods which make these processes relatively complex and expensive.…”

Effect of Bi3+ Ion Substitution on Magnetic Properties of Cobalt Nano Ferrites Prepared by Sol-Gel Combustion Method

“…It has been observed that bismuth ferrite (BFO) is the most promising multi ferroic material because of their low electrical conductivity (high resistivity), low magnetic and low dielectric losses [8] [9]. And an interesting fact is that, with a little amount of bismuth ion substituted in CoFe 2 O 4 the spinal structure of ferrite will not be changed [10] [11]. Conventionally, the nano ferrite particles can be synthesised by using different methods, like co-precipitation [12], bal-milling technique [13], sol-gel method [14], ero-gel process [15], hydro thermal method [16], and solid state reaction [17].…”

“…Conventionally, the nano ferrite particles can be synthesised by using different methods, like co-precipitation [12], bal-milling technique [13], sol-gel method [14], ero-gel process [15], hydro thermal method [16], and solid state reaction [17]. To obtain a highly pure crystalline nano powders at relative low temperatures, the sol-gel combustion method is the suitable one [18] [19]. Hence, the present work is done to investigate the magnetic properties of bismuth doped cobalt nano ferrites synthesised by sol-gel combustion method.…”