Preparation of CoFe2O4/SiO2 nanocomposites by sol–gel method

Impedance and magnetization of CoFeZr nanoclusters embedded into alumina matrix

“…The behavior of dc and ac carrier transport and also magnetic properties in binary metal-dielectric composites are strongly dependent on the composition of the material, in particular on its position relative to metal-insulator transition (MIT), or percolation threshold x c [10][11][12][13]. The latter is determined by the atomic fraction of metallic phase x in the composite, the ratio of the resistances of the metallic and the dielectric particles, and the geometrical parameters of the metallic and dielectric constituents such as their sizes, shape, distribution topology, etc.…”

Simple preparation routes towards novel Zn-based catalysts for the solventless synthesis of propylene carbonate using dense carbon dioxide

“…[39]. Zinc acetate (Zn(OAc) 2 ) has been used as Zn precursor and tetraethoxysilane (TEOS) as silica precursor.…”

Characterization of (Co0.45Fe0.45Zr0.10)x(Al2O3)1–x nanocomposite films applicable as spintronic materials

“…These oxides show different magnetic properties (ferrimagnetic for γ-Fe 2 O 3 or Fe 3 O 4 ; antiferromagnetic for CoO; ferromagnetic, superparamagnetic or ferrimagnetic for CoFe 2 O 4 , depending on temperature and type of matrix; etc.) and oxidation of the surface of ferromagnetic MMNPs can alter their magnetic behavior such as enhancing coercivity, photosensivity and creating an exchange bias [14,15].…”