Abstract In this study, we presented two reliable methods, the sol–gel and autocombustion, to synthesis a high purity BiFeO 3 single phase with low calcination time using glycine as chelating agent. The glycine-autocombustion method produced either or concentrations of reactants (Bi(NO ) + Fe(NO ), while glycine-sol–gel delivered reactants. case tartaric acid urea agents, mixtures Bi 25 FeO 40 ...

Cu substituted Ni0.5-xCuxZn0.5Fe2O4 (x = 0, 0.05, 0.1, 0.15 and 0.2) samples is synthesized using the sol-gel auto-combustion process. They have a cubic spinel structure with crystallite size in range of 29.01–42.68 nm. The increment copper content increases DC conductivity. electrical resistivity decrease an increase temperature i.e. it has negative coefficient resistance similar to semiconduc...

In this research nano particles of bismuth ferrite (BiFeO3) were synthesized by sol-gel auto-combustion route. The effect of water and ethylene glycol solvents were studied on phase constituents, magnetic properties and microstructure of the bismuth ferrite by X-ray diffraction (XRD), scanning electron microscope (SEM) and vibration sample magnetometer (VSM) techniques. XRD resul...

This work focuses on the microstructure, magnetic properties and magnetocaloric effect of CoFe$_2$O$_4$ (CFO) nanoparticles elaborated by sol-gel auto combustion method. The XRD investigation indicates that CFO is crystallized in a cubic spinel structure SEM micrograph shows fine quasi-spherical with an average grain sizes 160 nm. temperature dependence Raman spectra reveals ferromagnetic to pa...

Nanocrystalline Li0.35Ni0.3Fe2.35O4 ferrites were prepared at different annealing temperatures by sol–gel auto-combustion method. The effects of the temperature on structure and magnetic properties synthesized Li–Ni characterized X-ray diffraction (XRD), scanning electron microscopy, Fourier transform infrared spectra Vibrating Sample Magnetometer, photoelectron spectrometer. Rietveld refinemen...