Synthesis by successive ionic layer deposition on the silica surface and study of NiO1-x center dot zH(2)O nanolayers

The possibility of preparing NiO1-x. zH(2)O nanolayers on the silica surfac e by successive ionic layer deposition was demonstrated for the first time. Effects of the concentration and pH of reagent solutions and washing liqui ds, of the time of treating with them, and of the number of ionic layer dep osition cycles on the kinetics of nanolayer growth were studied. Conditions were found for the formation of nanolayers by reactions of sorbed ions in a layer. The composition of the resulting layers was studied by the UV-Vis and IR Fourier spectroscopy and by chemical analysis. Their thickness was d etermined ellipsometrically. The synthesis yields layers of nickel peroxide compounds, their thickness being determined by the number of ionic layer d eposition cycles at a level of nanometer fractions. Changes in the composit ions of the nanolayers on keeping and heating in air were also studied.