Abstract
•The properties of ferrites are mainly depending on chemical composition, synthesis method.•We have prepared 100 % replacement at A site AB2O4 materials with several dopant i.e Mn2+, Co2+, Ni2+, Cu2+.•Samples were prepared by solution combustion method using glucose as fuel.•VSM results reveals that samples were turns ferrimagnetic to ferromagnetic nature with changing substitution.•Samples exhibits highly porosity so that these samples very good candidates for humidity sensor applications.
Ferrites are a very common commodity in the modern world due to their very strong magnetic permeability, high resistivity, modest permittivity, high saturation magnetization, low power losses, low coercivity, low remanence magnetization, and low power losses. These properties are mainly depending on chemical composition, synthesis method and other parameter. Further based on these parameter material exhibits noticeable properties. Aiming on these points we have prepared 100 % replacement at A site AB2O4 materials with several dopant i.e Mn2+, Co2+, Ni2+, Cu2+. All the samples were prepared by solution combustion method using glucose as fuel. This method is the only one method very less expensive compare to other synthesis methods. The MFe2O4 (M = Mn2+, Co2+, Ni2+, Cu2+) samples were characterized by XRD, FTIR, SEM and VSM to confirm phase, structure, crystallinity and magnetic behavior of the samples. XRD data reveals that crystallite size were found decreases with changing transition metal 100 % replacement at A site. FTIR reveals that octahedral peak width decreases with changing substitution. Morphology is highly porous nature for all samples. Magnetic behavior was studied by using VSM and results reveals that samples were turns ferrimagnetic to ferromagnetic nature with changing substitution. Hence our results help to permanent magnet applications. Since samples exhibits highly porosity so that these samples very good candidates for humidity sensor applications.