Thermodynamic, structural and magnetic studies of NiFe2O4 nanoparticles prepared by combustion method: Effect of fuel

• Published in: Journal of alloys and compounds Vol. 546; no. 5; pp. 314 - 319
• Main Authors: Phadatare, M.R., Salunkhe, A.B., Khot, V.M., Sathish, C.I., Dhawale, D.S., Pawar, S.H.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 05.01.2013; Elsevier
• Subjects: Adiabatic flow; Alloys; Combustion; Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Crystallites; Exact sciences and technology; Fuels; Magnetic measurements; Materials science; Materials synthesis; materials processing; Nanocrystalline materials; Nanoparticles; Nanopowders; Nanoscale materials and structures: fabrication and characterization; Nanostructured materials; Physics; Polyvinyl alcohols; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Thermodynamic properties; Ureas; Thermodynamic properties; Magnetic measurements; Nanostructured materials; Cubic lattices; Combustion synthesis; Thermogravimetry; Vinyl alcohol copolymer; Differential thermal analysis; XRD; Nanostructures; Glycine; Precursor; Magnetic measurement; Nanoparticles; Urea; Crystallites; Ferrimagnetism; Spinels; PVA; Iron Nickel Oxides Mixed; Gallium selenides; Nanocrystal; Crystal structure
• ISSN: 0925-8388; 1873-4669; 1873-4669
• DOI: 10.1016/j.jallcom.2012.08.092

► Combustion synthesis of nanocrystalline NiFe2O4 by using PVA, glycine and urea as a fuel. ► Mechanism of combustion reaction based on adiabatic flame temperature. ► Effect of fuel on structural and magnetic properties of NiFe2O4 nanoparticles. Nanocrystalline NiFe2O4 samples were prepared by chemical combustion route using different fuels as polyvinyl alcohol (PVA), glycine and urea. An interpretation for the mechanism of combustion reaction based on the measurement of the adiabatic flame temperature and the amount of gases evolved during reaction had been proposed. The thermal study of the precursor gel was done by using the Thermo Gravimetric-Differential Thermal Analysis (TG-DTA). Occurrence of the cubic spinel phase for all the samples was confirmed by X-ray diffraction (XRD) pattern. The magnetic characterization of all the samples was carried out by Quantum Design MPMS-XL instrument. The magnetic measurement showed the ferrimagnetic behaviour of all the nanoparticles while nanoparticles prepared by using urea as a fuel were found to have slightly greater crystallite size and relatively stronger A–O–B interaction compared to others.