Nanomagnetite Synthesis via Co-precipitation of Iron Salts by Potassium and Ammonium Hydroxides
Magnetite nanoparticles were synthesized via co-precipitation of iron (II) and iron (III) salts by potassium hydroxide or ammonium hydroxide in aqueous solution. Magnetic properties of magnetite nanoparticles were investigated by magnetometry method.
Подобные документы
Calculation of main electrical value and determination of isolation distances. Determination of the mass of the active part of the magnetic circuit, building materials and oil. Description of the design of transformers. Calculation of the HV winding.
дипломная работа, добавлен 06.12.2016Analysis of differential equations encountered in various applications, which are interpreted as equations in graphs. Using graph properties to create a high-quality theory of such equations and methods for their solution. Description of the graph struc
статья, добавлен 12.08.2020Description of the ion-optical properties and characteristics of prism mass analyzer. The formation and focusing of a parallel ion beam in the mass spectrometer, which allows him to reduce the spherical aberration of the additional focusing system.
статья, добавлен 30.07.2016The results of experimental studies of physical mechanisms of energy dissipation in the oscillating system in which air cavity held by the forces of magnetic levitation. Limitation of applicability of Helmholtz equation, caused by boundary effect.
статья, добавлен 13.10.2016The leading order Foldy-Wouthuysen Hamiltonian. The Classical theory of Fields. The force experienced by a charged-particle with anomalous magnetic moment in presence of external fields. Approaches which have been used to address the question of a force.
статья, добавлен 11.09.2012The discovery of giant magnetoresistance in multilayers - the reason of stimulation of search this phenomena in film systems. Analysis a phenomenological theory that describes qualitatively the dependence of the sensitivity to the magnetic field.
статья, добавлен 30.07.2016The impact of nanoporous carbon material morphology on its electrochemical behavior in aqueous electrolyte. The optimum concentration of aqueous lithium sulfate which provides the maximum specific energy characteristics of capacitor-type systems C/LiSO/C.
статья, добавлен 24.02.2016The aerodynamic properties of the wing (drag, lift-to-drag ratio and induced drag) were investigated experimentally. Two forms of nonlinear equations of lift curves. Flow visualization in observing the influences of tip vortices shed from the wing tips.
статья, добавлен 18.01.2014The discovery of giant magnetic seasons granular thin films of alloys - the reason for the study the temperature coefficient of resistance, resistivity. Characteristics of schematic illustration of a single layer and tube current layered structure.
статья, добавлен 30.07.2016The advantages of the method of modulation polarimetry applied to the sample in the quartz glass plate to identify its internal thermal stresses caused by the spreading of the thermal wave. The solution to the problem of non-stationary thermoelasticity.
статья, добавлен 26.06.2016The receipt of the thermoelectric properties of p-alloy powders and their structural properties. Compaction of powders by vacuum hot pressing and spark plasma sintering. The thermal conductivity of the samples, the calculation of the Seebeck coefficient.
статья, добавлен 13.10.2016The coatings based on (Ti-Al-Zr-Nb-Y)N and (Ti-Zr-Hf-V-Nb-Ta)N were obtained by means of vacuumarc deposition from the cathodes in the atmosphere of nitrogen. Their physical and mechanical properties, tribotechnical characteristics have been studied.
статья, добавлен 30.07.2016Sublimated bulk at temperatures and the effect of sublimation temperature on the morphology of product. Fourier transform infrared spectroscopy. X-ray Diffraction Patterns. Scanning Electron Microscopy Images. Preparation of [Zn(acac)2] Nanostructures.
статья, добавлен 30.07.2016Development of effective magnetic field sensors based on amorphous ferromagnetic microwires. Identification of factors affecting the reversal processes in the surface layer values magnetoimpedance wire. Features of the distribution of magnetization.
статья, добавлен 13.10.2016Invariant formulation of the Lorentz transformation. Derivation of the Lorentz force law and the magnetic field. The time component of the relativistic generalisation of the Lorentz force law. The time component of newton’s second law in electrodynamics.
статья, добавлен 11.09.2012Investigation of the kinetic nonequilibrium dynamics of the electron-phonon system of a crystal in a strong electric field on the basis of the numerical solution of the system of kinetic Boltzmann equations for the electronic and phonon functions.
статья, добавлен 22.12.2016The effectiveness of the solution algorithms, integration of Euler’s method. Substantial foundations of the theory of creep. Requirements for a number of material constants that describe the experiment. Foundations of hypotheses of the microstrains.
статья, добавлен 29.11.2016The use of asymptotic formulas for calculating the stray field of an arbitrarily oriented magnetic and electric dipole located on the axis of an ideally conducting disk. Using the methods of physical and uniform asymptotic theory of diffraction.
статья, добавлен 05.11.2018Acquaintance with the features of the influence of polymer coatings on the lifetime of carriers in silicon crystals used in solar energy. General characteristics of the conditions of magnetic and X-ray exposure, analysis of electrophysical parameters.
статья, добавлен 23.12.2016The introduction of sulfur in the liquid condensates of zinc oxide as one of the ways to create efficient phosphors based on this material. Application of the method of extrapolation of Nelson-Riley to obtain accurate values of the lattice constant.
статья, добавлен 30.07.2016The specific properties of the Evans function, its use as a tool in mathematical physics. Application of the Darboux transformation to the Schrodinger equation. Solution of the standard Riccati differential equation. Investigation of a discrete spectra.
статья, добавлен 23.06.2018The model for 6Li nucleus is used to study the structure properties of this system within the variational method with Gaussian basis. The description of the elastic S-phases at low energies simultaneously with correct values of the binding energy.
статья, добавлен 19.09.2013Study of heavy and superheavy nuclei. Small sectional synthesis SHN. Analysis of the height of the static fission barriers Bfst of heavy nuclei at the single particle. Determination of the energy of the odd nucleon. Static barrier spontaneous fission.
статья, добавлен 06.11.2013General characteristics of the analytic solution of Kompaneets. Feature of interaction of the supernova remnant with inhomogeneities of the interstellar medium and especially with molecular clouds, analysis of the main approaches to the problem.
контрольная работа, добавлен 17.10.2013The two dimensional magnetic micropolar generalized thermoelastic medium, in the presence of the effect of Hall currents. Laplace and exponential Fourier transform techniques are employed to transform the governing partial differential equations to ODE.
статья, добавлен 22.03.2016