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Information × Registration Number 0214U000702, 0112U002062 , R & D reports Title Nanocomposite oxide electrocatalysts for oxidation processes with oxygen-containing radicals. popup.stage_title Head Alexander B. Velichenko, Доктор хімічних наук Registration Date 14-05-2014 Organization State higher educational entity "Ukrainian State University of Chemical Technology" popup.description2 Object of the investigation - the physico-chemical properties of oxide composites PbO2–TiO2, PbO2–ZrO2, TixOy–Pt. Aim - the influence of preparation conditions on the physico-chemical properties of nanocomposite electrocatalysts based on PbO2 and TiO2. Research methods - gravimetry, x-ray microanalysis, x-ray diffraction, scanning electron microscopy, XRD analysis, x-ray photoelectron spectroscopy. It was found that the electrodeposition from suspension electrolytes containing TiO2- and ZrO2-particles leads to formation of composite coating. Content of disperse phase particles in composite coating depends on preparation conditions and varies from 2 to 30 wt.%. Composite material is a PbO2-matrix with submicron and nanosized crystals, which contains particles of the disperse phase. Electrodeposition of Pt on Ti-substrate leads to formation of composite coating that consist of titanium oxides, metallic titanium, metallic platinum and intermetallic compound TixPty. Heat treatment leads to significant changes in surface morphology due to thermal diffusion of Pt both long the surfase and in the bulk of substrate or sintering. Surface morphology of Ebonex®/Pt-electrodes as well as their phase composition was shown to depend on the content of platinum, temperature and duration of treatment. Area of application: С 25.61– treatment and coating of metals; М 71.20 – technical testing and research; М 72.19 – research and experimental development in the field of humanitarian and technical sciences. Product Description popup.authors Веліченко Олександр Борисович Гиренко Дмитро Вадимович Касьян Ольга Іванівна Кривоносова Наталія Іванівна Лук’яненко Тетяна Вікторівна Пілецька Анастасія Олександрівна Шмичкова Олеся Борисівна popup.nrat_date 2020-04-02 Close