Quaternary M0.25Cu0.25Mg0.5Fe2O4 (M=Ni, Zn, Co, Mn) ferrite oxides: Synthesis, characterization and magnetic properties

A review on MnZn ferrites: Synthesis, characterization and applications

“…In addition, this review critically analyses methods and discusses on the choice of synthesis method for use of MnZn in a given application. In brief methods such as sol-gel method [96][97][98][99][100][101], co-precipitation method [85,[102][103][104][105][106][107][108][109], conventional ceramic technique [110,111], hydrothermal method [112][113][114], citrate precursor method [115][116][117], solid state reaction method [118], auto-combustion method [119] and microemulsion method [120] for the synthesis of MnZn are discussed. Various advantages and disadvantages of the synthesis methods are shown in Table 1.…”

“…MnZn ferrites are of great interest due to their wide range of applications such as hyperthermia applications [141], power applications [109][110][111], magnetic fluid [145], high frequency power supply, memory storage devices, TV sets, biomedicines [146], magnetic resonance, catalysis etc. There is a continuous progress in the size and shape control of MnZn ferrites and also on the morphological and magnetic properties of MnZn ferrites by using different methods [147] of synthesis like sol-gel method [96][97][98], co-precipitation method [85,[102][103][104][105][106][107][108][109]143], conventional ceramic technique [110,111], hydrothermal method [112][113][114][148][149][150], citrate precursor method [115], solid state reaction method [118], autocombustion method [119,151], microemulsion method [120]. The effect of doping on the structural and magnetic properties of pure MnZn ferrites is also taken into account.…”

“…The difference between these two values was due to the relative changes in bond length (Fe-O) at tetrahedral (A) sites and octahedral (B) sites.The FTIR spectra recorded by Gabal [206] in the range 600cm -1 -200cm -1 showed high frequency band (ⱱ 1 ) increased with increasing Zn content due to vibrational spectra of metal ion-oxygen complex in the tetrahedral sites, while value of lower frequency band (ⱱ 2 ) due to vibration in the octahedral site, slightly changed. FTIR of all compounds showed the formation of spinel phase.Ciocarlan et al [103]synthesized Mn ferrite along with Ni ferrite, Zn ferrite and Co ferrite and studied their various properties. Formation of spinel phase is observed from FT-IR spectra of all the compounds as shown in figure 17(b).…”

Novel Polyimide/Copper-Nickel Ferrite Composites with Tunable Magnetic and Dielectric Properties

“…It has also found use in biomedical applications such as magnetic thermodrug delivery, hyperthermia, biosensors, and magnetic resonance imaging [8][9][10][11]. Besides Co 2+ , various other metallic cations such as Ni 2+ , Cu 2+ , Zn 2+ , Mg 2+ , Mn 2+ , have been partially or even totally introduced into the ferritic structure (M 2+ Fe 2 O 4 ), resulting in nanoparticles with specific morphology and properties [12][13][14][15][16][17]. For example, it was found that for Co 1-x Ni x Fe 2 O 4 nanofibers, saturation magnetization, and coercivity decreased with increasing nickel concentration due to the smaller magnetic moment of Ni 2+ ions compared to Co 2+ ions [12].…”

Synthesis and adsorption properties of nanocrystalline ferrites for kinetic modeling development

“…Obtaining nanocrystalline ferrites is well known and documented with available preparation procedures including coprecipitation, sol‐gel, hydrothermal, reverse micelle methods. Coprecipitation technique is adaptable and offers control over the desired domain size, shape, surface chemistry, and magnetic properties of the particles by choosing the right surfactant agent and synthesis conditions .…”