ELECTROCHEMICAL SYNTHESIS OF HYBRID MATERIALS BASED ON POLYELECTROLYTE CHITOSAN COMPLEXES AND INVESTIGATION OF THEIR PHYSICAL AND CHEMICAL PROPERTIES

Abstract

A study of the morphology, structure and elemental composition of hybrid materials on the surface of stainless steel based on polyelectrolyte complexes of chitosan with cobalt and nickel oxides, obtained using an alternating asymmetric current, was carried out. It was established by X-ray phase analysis that the main phase of the obtained hybrid materials is cobalt hydroxyisocyanate. The prospects of using the obtained hybrid materials as electrodes for supercapacitors with alkaline electrolyte are shown, while its specific capacitance at a current density of 1 A∙g-1 reaches 479 F∙g-1. The antibacterial activity of hybrid materials against gram-positive (S.aureus) and gram-negative (E.coli) microorganisms was determined. A study of corrosion-protective properties of the developed hybrid materials in a solution of 3.5 wt. % NaCl was carried out, it is shown that for the hybrid material the corrosion potential is shifted to the region of positive values compared to pure steel.