Ultrafine (2-5 nm) particles of amorphous Ca-Mg co-doped ferrihydrite have been synthesized by surfactant mediated co-precipitation method. The evolution of the amorphous ferrihydrite by Ca-Mg co-doping is quite different from our earlier investigations on individual doping of Ca and Mg. Amorphous phase of ferrihydrite for the present study has been confirmed by X-ray diffraction (XRD) and Möss...

We present here a first principles study of the structural, electronic, magnetic, and hyperfine properties magnesium ferrite, MgFe2O4 (spinel structure). The was carried out within framework Functional Density Theory (DFT) using full potential linearized augmented plane waves method (FPLAPW) both Generalized Gradient (GGA) GGA+U approximations for exchange correlation potential. To discuss magn...

The composite powders of barium-magnesium ferrite were prepared using sol-gel auto-combustion and microwave methods. The crystal structure and the shape of nanocomposites have been compared. X-ray Diffraction (XRD), Scanning Electron Microscope (SEM) and Vibrating Sample Magnetometer (VSM) were used to investigate the structural, morphological and magnetic properties of nanopowder. The formatio...

In vitro evaluation of PEGylated mesoporous MgFe2O4 magnetic nanoassemblies (MMNs) for chemo-thermal therapy" (2013). A size tunable synthesis of mesoporous MgFe 2 O 4 magnetic nanoassemblies (MMNs) through a PEG-diacid mediated polyol method is reported. The PEG-diacid coated MMNs exhibit a significant specific surface area of 92 m 2 g À1 and saturation magnetization of 57 emu g À1. These MMNs...

An ethylene-glycol (EG) mediated self-assembly process was firstly developed to synthesize micrometer-sized nanostructured Mg-doped Fe3O4 composite oxides to decompose hexachlorobenzene (HCB) at 300°C. The synthesized samples were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, energy dispersive X-ray spectroscopy and inductively coupled plasm...

The basicity (CaO/SiO2) has an important influence on the metallurgical properties of fluxed pellet with high MgO content. This paper studied effect and function pellet, such as compressive strength, reduction disintegration, swelling softening-melting behaviour systematically simulating BF conditions. From results, increasing from 0.6 to 1.3, strength increases 2842 N 3532 N, pore structure be...