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  • Electrochemical titanium oxidation in electrolytes on the basis of glycerin with high water content

    The titanium dioxide synthesized by an electrochemical method is a perspective material for use in solar elements and catalysts of cleaning of water and air environments. Regularities of electrochemical synthesis of titanium dioxide in glycerin dilute solutions (1:1) in the presence of ammonium fluoride at 2-14 V are investigated. Mathematical scheduling of synthesis process according to plans of first order with use of the complete three-factorial experiment is carried out, the adequate regression equations for formation processes of a titanium dioxide in the field of potentials 8-14 V are received. The electron microscopy method proved porosity of synthesizable layers of titanium dioxide. Water content influence in electrolyte on the speed of electrochemical process and potential size influence on titanium dioxide materials yield is established. It is shown that under the chosen electrolysis conditions electrochemical process is accompanied by the considerable chemical disolution of a titanium. Electrochemical processes in water containing glycerin are investigated by a cyclic voltammetry method. It is established that at electrochemical oxidation of Ti in water containing glycerin (1:1) porous TiO2 with a materials yield no more than 25% is formed.

    Keywords: titanium, titanium dioxide, electrochemical oxidation, glycerin, ammonium fluoride, experiment scheduling

  • The destruction of the electrical double layer of particles azo pigment

    The results of studies on the nature and energy of the ions between the water-soluble impurities, and particulate organic matter - azo pigments. Found that the water-soluble impurities ions sorption on the surface of the solid phase. A model of the formation of the electric double layer of ions of soluble impurities around the particles of organic matter. With software «Firetly» calculated binding energies of ions and particles of water-soluble impurities azo orange G and red FGR. The mechanism of destruction of the electric double layer by introducing a system of metal nanoparticles forming around competitive sorption layer of ions of soluble salts and method of destruction of this layer by repeated decantation repulpatsiey-artesian water containing metals nickel, aluminum, iron and platinum in a nanostructured form. Is to move the ions from the surface of the water-soluble impurities particles of organic matter on poverhnostmetallov in nanostructured form.

    Keywords: particle organic matter, azo pigments, nanoparticles, nanostructured metals in the form, multiple-repulpatsiya decantation, double layer ions vodoasvtrorimye impurities

      Mathematical model is developed, which allows to calculate the equilibrium ionic and colloid composition of ammonium electrolytes for electrodeposition of alloy of zinc-nickel and evaluate the impact on the composition of the electrolyte values of pH and total concentrations of the components.

    Keywords: modeling, colloidal particles, electroplating, zinc-nickel alloy

      Regularities of electrode position of zinc-nickel alloy in electrolytes containing colloidal particles electro-besieged metals are studied. Developed by the electrolyte, which allows to reduce concentration of the basic components in 2 times and to increase speed of process in 2,5 times.

    Keywords: zinc-nickel alloy, colloidal particles, speed of electrode position

  • Mathematical representation of the characteristics of the interphase boundary surface of the transition layer

    It is shown that to describe the phenomena and processes in a transition interfacial layer having a certain thickness, it is useful to distinguish the boundary layer of the surface and boundary diffusion layer, which lies entirely in the less condensed phase related. In accordance with this energy and power characteristics of the transition layer should be attributed to the boundary surface of the interphase transition layer. The basic equation of electro capillary boundary of the surface layer, establishing the dependence of the surface tension of this layer on the chemical composition of the second phase, and bordering the jump of electric potential between them.

    Keywords: Interphase layer, Entropy, Concentration, Adsorption, Surface tension boundary layer, the surface energy, electrochemical electrode

  • Study of possible cathode intercalation of alkali metal platinum under an alternating pulse current

    • Abstract

    The work investigated the cathode intercalation process alkali metal platinum under the influence of the alternating pulse current of aqueous and non-aqueous solutions containing alkali metal cations. By means of the method of pulse chronopotentiometry found that processes taking place at the platinum cathode polarization in water (neutral and alkaline) and in non-aqueous electrolytes include electrochemical adsorption and intercalation of solvent molecules into the adsorption layer of alkali metal ions. When this surface is oxidized in the intercalation platinum milder than pure platinum.
    Keywords: Cathodic intercalation, the intercalation capacity, platinum.

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