Impacts of annealing temperature on microstructure, optical and electromagnetic properties of zinc ferrites nanoparticles synthesized by polymer assisted sol-gel method

Extraction of gamma iron oxide (γ-Fe2O3) nanoparticles from waste can: Structure, morphology and magnetic properties

“…On the other hand, SEM gives the information of core particles only. As a result, the hydrodynamic diameter obtained from Nanoparticle Analyzer is always bigger from the desiccated diameter from SEM micrographs [ 47 , 53 , 54 ] and the particle size increases following the same pattern like the SEM result [ 55 ].…”

Elucidation of structural, electromagnetic, and optical properties of Cu–Mg ferrite nanoparticles

“…We have selected Mg 0.5 Cu 0.5 Fe 2 O 4 sample because it is the middle composition of the synthesized ferrites. Agglomerated nanoparticles of the sample seen in the TEM micrographs with a narrow size distribution as the nature of the nanoparticles to become agglomerated to reduce the Gibb's free energy [ 53 ].In Fig. 8 (d) shown the histogram of the Mg 0.5 Cu 0.5 Fe 2 O 4 nanoparticles.…”

“…To analyze the ambiguity caused by the existence of grain boundary impact at ambient temperature, the imaginary part of impedance (Z″) was plotted against the real part of impedance(Z′), as shown in Fig. 12 (g) [ 53 ]. This finding clearly indicates the appearance of dipolar and space polarization in the analyzed material, with peaks appearing because of dipolar contribution [ 20 , 75 ].…”

Exploring moisture adsorption on cobalt-doped ZnFe2O4 for applications in atmospheric water harvesting

“…36,37 The absorption bands for the bending and stretching vibrations of -OH owing to adsorbed moisture aer harvesting experiments on zinc ferrite were observed at 1550-1650 and 3200-3300 cm −1 , respectively. [38][39][40][41] The bands at 1350-1386 cm −1 implied the existence of many residual hydroxyl groups. 42 A clear indication of moisture adsorption could be conrmed by comparing FTIR spectra before and aer harvesting experiments.…”