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Total number
Full text
Number of local repositories
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0220U002036,
0119U002568
,
Development of physico-chemical basis of matrix inversion for synthesis of composite coatings for catalytic converters of technogenic toxicants neutralization
Sakhnenko Mykola,
11-02-2020
The Kharkov state polytechnical university
The object of study is the processes of formation of nanostructured composites and metal oxide coatings with high activity in electro- and photocatalytic reactions. The goal of the work is the creation of scientific bases of nanostructured metal oxide composites synthesis for catalytic converters of natural and technogenic toxicants non-reagent neutralization for arrangement of stationary and mobile filtering ventilation systems, and reduction of toxic emissions of transport engines due to in-cylinder catalysis, for development of new technologies. Research methods - voltammetry, potentiometry, scanning electron spectroscopy, X-ray fluorescence method, X-ray phase analysis, atomic force microscopy, photocolorimetry. The latest scientific paradigm of electrochemical design of functional materials by inversion of elements of metal oxide composites due to variation of modes and integration in the technological cycle of several electrochemical methods is substantiated. The methodology of aluminum alloys surface treatment by plasma-electrolyte oxidation in solutions with the addition of ligands is proposed. Increasing the thickness of the defect-free coating and the dopant content is achieved by the parallelization of the anode process with the dissolution of the original alloy components and the simultaneous formation of mixed oxides. Almost tenfold increase of microhardness of surface layers of AlAl2O3CoOx oxide systems has been proved in comparison with the substrate not only due to the inclusion of enamel melts, but also to the formation of sapphire due to crystalchemical transformations and the replacement of cobalt aluminum in lattice. The influence of the composition and structure of heterooxide composites on their catalytic activity was determined, the most effective systems were determined by the results of toxicants disintegration under UV irradiation.
Богданова Катерина Борисівна
Ведь Марина Віталіївна
Зюбанова Світлана Іванівна
Каракуркчі Ганна Володимирівна
Кузнецова Анастасія Вікторівна
Майба Марина Володимирівна
Маркова Наталя Борисівна
Матикін Олексій Володимирович
Меньшов Сергій Миколайович
Овчаренко Ольга Олександрівна
Поспєлов Олександр Петрович
Сахненко Микола Дмитрович
Сачанова Юлія Іванівна
Степанова Ірина Ігорівна
2020-04-02
Updated: 2025-12-21
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