The development and improvement of methods for the synthesis environmentally friendly catalysts based on base metals is currently an urgent promising task modern catalysis. Catalysts nanoscale magnetite maghemite have fast adsorption–desorption kinetics high chemical activity. purpose this work to obtain magnetic composites, determine their physicochemical characteristics verify activity in pro...

In this work, the resistive switching and electrical-control of magnetization in Pt/CoFe2O4/Nb:SrTiO3 heterostructures have been investigated. The films exhibit a classic bipolar effect with maximum switch ratio about 5 × 103 good anti-fatigue performance. Associated switching, saturated thin film at high resistance state is found to be larger than that low state. Meanwhile, polarized neutron r...

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cobalt ferrite nano-powder have been obtained through a hydrothermal method with 2:1 molar ratio of fe:co without using any surfactant. x-ray diffraction (xrd) and scanning electron microscopy (sem) were used to consider the structural and morphological properties of cofe2o4 nano-particles. also, edax spectroscopy applied to evaluate the chemical composition. results demonstrated that 15 hr hyd...

Magnetoelectric 0-1 composites comprising CoFe2O4 (CFO) nanoparticles in a polyvinylidene fluoride (PVDF) polymer-fibre matrix have been prepared by electrospinning. The average diameter of the electrospun composite fibres is ∼325 nm, independent of the nanoparticle content, and the amount of the crystalline polar β phase is strongly enhanced when compared to pure PVDF polymer fibres. The piezo...

Cobalt ferrite nano-powder have been obtained through a hydrothermal method with 2:1 molar ratio of Fe:Co without using any surfactant. X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) were used to consider the structural and morphological properties of CoFe2O4 nano-particles. Also, EDAX spectroscopy applied to evaluate the chemical composition. Results demonstrated that 15 hr hyd...

Optical properties of cobalt ferrite (CoFe2O4)/barium titanate (BaTiO3) nanoparticles are modeled and simulated utilizing density functional theory (DFT) finite element analysis (FEA) intended for various particle sizes. The absorption maxima electronic excitations is red-shifted from 259.51 nm to 315.27 employing quantum mechanical approach 260 280 using analysis, corresponding enlarging sizes...

CoFe2O4 is a promising catalytic material for many chemical reactions. We used ab initio molecular dynamic simulations to study the structure and reactivity of A- B-terminations low-index CoFe2O4(001) surfaces water adsorption at room temperature. Upon adsorption, partly dissociates on both termination with higher dissociation degree A-termination (30% versus 19%). The 2-fold coordinated Fe3+(t...