Results 1 - 4 of 4
Results 1 - 4 of 4. Search took: 0.014 seconds
|Sort by: date | relevance|
[en] In connection with the development of nanotechnology in the last 15—20 years, the method of molecular layering (ML), created in the middle of the last century in the USSR, has attracted increasing attention. The features of structural-dimensional effects in the products obtained by new chemical nanotechnology and promising directions of their practical application in "core—nanoshell" compositions are considered in the review. In accordance with the synthetic capabilities of the ML method, the functional properties of the "core—nanoshell" type materials are affected by the "monolayer effect" and the substrate shielding effect, as well as the multicomponent nature of the system, and mutual structural coordination effect of the substrate and the build-up nanolayer. The review presents theoretical and experimental data on the application of the observed effects in the creation of shell pigments and fillers, modified sorbents, catalytic membrane reactors, nanodoped ceramic materials, polymers, quartz fibers with adjustable optical characteristics, electrets, etc.
[en] The hydrolytic stability of the Si-O-Ti bonds in titania nanostructures on the surface of silica materials of different genesis is analyzed. The mechanism of hydrolysis is considered and the decisive role of structural and chemical features of silicas in the stability of titania nanostructures on their surface is demonstrated.
[en] The surface topography of glass matrixes is investigated before and after oxide coatings caused by the molecular layering method. The conductance of synthesized nanolayers is investigated
[en] Effect of a simultaneous thermal treatment at 480°C and X-ray radiation (irradiation dose 10−3 C/kg (∼4 R) in a vacuum (residual pressure 10−3 Pa) on the structure and properties of titanium oxide nanocoatings of various thicknesses, synthesized by the molecular layering technology on the inner surface of glass bulbs of X-ray tubes, was examined. It was shown that the thermal and X-ray radiation treatments in a vacuum lead to a recrystallization of the titanium oxide layer and removal of oxygen atoms from its composition, which affects the electrical properties of the system.