Synthesis of multicomponent oxide low-dimensional systems on the surface of porous silicon dioxide using the molecular layering method

Abstract

Reflecting the research in the field of the surface chemistry of solids over the last 25-30 years, the results related to the application of the molecular layering method for the synthesis of surface low-dimensional structures of complex composition are presented. The regularities of formation of multicomponent mono-, multilayers on the surface of solid-phase matrices are studied on examples of chemical interactions, by a preset program, of chlorides and oxychlorides of titanium, vanadium, phosphorus, chromium, zinc, and iron with hydroxy and secondary functional groups of porous silicon dioxide. On the basis of chemical-analytical and spectroscopic data, structural schemes of synthesized products are proposed and functional interactions in multicomponent monolayers on the surface are considered. The reactivity of the element chlorides and oxychlorides as a function of the chemical composition of surface functional groups of silica and on synthesis conditions is estimated. In view of the revealed regularities of formation of complex low-dimensional systems on silica surface, prospects of application of the resulting data are considered for elaboration of scientific foundations of the chemical nanotechnology of production of solid-phase materials of various functional use, based on the molecular layering method.