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UDC 544.653.23

ELECTROCHEMICAL SYNTHESIS OF NANOSTRUCTURED COATING BASED ON TITANIUM DIOXIDE

D. V. Suvorov, PhD (technical sciences), associate professor, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.
G. P. Gololobov, PhD (technical sciences), associate professor, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.
M. А. Serpova, post-graduate student, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.
Yu. M. Stryuchkova, PhD (сhemical sciences), associate professor, RSREU, Ryazan; This email address is being protected from spambots. You need JavaScript enabled to view it.
N. B. Rybin, PhD (physical and mathematical sciences), associate professor, RSREU, Ryazan, This email address is being protected from spambots. You need JavaScript enabled to view it.

The article presents the results of the study of titanium dioxide anodic layer morphology obtained by electrochemical synthesis under various anodic conditions. A method for the electrochemical formation of nanoporous TiO2 structure under the conditions of superimposing an alternating voltage component to a constant component (in the frequency range 100 Hz – 1 MHz) is proposed. The aim of the work is to study the influence of the electrode potential and the anodizing regime on geometric characteristics of TiO2 coating. It is shown that under certain conditions of anodic oxidation, coatings based on TiO2 have tubular structure with a high degree of ordering relative to the substrate. Formation of titanium dioxide films under the conditions of superposition of a variable component of the potential with a constant component leads to an increase in coating formation rate by 5-7 times and to qualitative structural changes: open intertube space appears, «intertubular bridges» are formed, and the shape of nanotube cross section is «rounded».

Key words: anodizing, electrochemical synthesis, titanium dioxide, nanotubes, coating structure, films, catalytic coating, anodic oxidation.

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