Honcharov V. Рhysical-chemical properties of the соаting obtained by the method of ion implantation on the surface of stainless steel

The thesis is devoted to the use of ion implantation as a technique of synthesis and modification of catalysts on the steel framework for the oxidation of CO, CH4 and C2H5OH conversion. It is known that the catalytic composition for neutralization of harmful emissions (CO, NOx, etc.), oxidation and conversion of hydrocarbons must be active, selective, stable, have high mechanical strength, the ability to withstand high temperatures and overheating of the reaction without loss of properties and high heat and electrical conductivity. This is particularly important because of the possibility of non-traditional start of the reaction by heating the catalyst. Based on a literature review of existing catalytic systems and methods for their synthesis, it was proposed to use ion implantation as a technology of catalytic composites. XRD, AFM, SEM and XPS found the formation of nanoscale amorphous for X-ray oxynitride, nitride and oxide layer structures of the implant, which are activated by heating in an oxygen environment. Thermal and sklerometrics studies have shown high mechanical and thermal durability of the implants, deposited on stainless steel, which allows us to recommend them for use as heating elements or in reactions with significant heat flows (in gas turbines, generators of heat etc.). A high catalytic activity, selectivity and stability of the composites with Ti, Ni, Al, Cr in the oxidation of CO, methane and the decomposition of ethanol and their competitiveness with respect to the platinum catalysts with metals of the series were found. The perspective of application of composites in a nontraditional way for the catalytic reaction of hydrogen synthesis from ethanol by heating electric shock of the catalyst was shown.