Zozulya V. Colloidal-chemical properties of porous structures forming by selective dissolution of Ag-Au system

Dissertation is devoted to study of regularities of crystallized three-dimensioned porous structures, consisted of high purity gold, self-organization forming processes, which take place in Ag-Au system during contacting with nitrate solutions under the influence of chemical and superposed anodic potential gradient. Systematic data, concerned with colloidal-chemical properties of porous structures was obtained; using the method of moistening heats, it was established, that surface of porous structures is hydrophilic. Comparison of adsorption-structural and electronic-microscopic investigations' results showed, that model of contacting cylinders is the most appropriate geometrical model of investigated porous structures' configuration; in the aggregate of their certain hydrophilic properties (Qs?0,1J/m2) it is a basis of membrane properties' calculation method of those kind of structures. Colloidal-chemical model of porous structures' forming process was created. In its framework the typical particles size of the obtaining structures is determining by kinetics of the process of selective dissolution of initial system of components.