Search academic texts

Information × Registration Number 0220U000280, 0117U001235 , R & D reports Title Nanocomposite and nanostructurized systems with catalytic properties popup.stage_title Head Reshetnyak Oleksandr Volodymyrovych, Доктор хімічних наук Registration Date 27-01-2020 Organization Ivan Franko National University of Lviv popup.description2 Object of research - processes of the formation of nanocomposites and nanostructurized systems; catalysis on the surfaces modified by metal nanoparticle. The purpose of the work is to development of the scientific basis for the synthesis of perspective nanocomposite and nanostructurized systems with predetermined catalytic properties based on palladium and bimetallic systems. Research methods - cyclic voltammetry; chronoammetry; IR, UV, energy-dispersive X-ray and X-ray photoelectron spectroscopy; scanning electron and atomic force microscopy; X-ray diffractometry; thermogravimetric analysis; conductivity studies. Results of research work: Methods for synthesis of nanocomposite and nanostructurized systems based on metal-polymer, mineral-polymer, polymer-polymer and reactive composites has been designed, namely, chemical decoration of thin films of polyaniline (PAn) by nanoparticles of palladium and gold; introducing of borohydrides into the mineral nanocarcasses using solution impregnation; electrodeposition of bimetallic nanostructurized Pd-Au sediments of different composition using pulsed electrolysis mode; chemical and mechanochemical synthesis of mineral-polyaniline composites and the like. The peculiarities of morphology, basic physicochemical and catalytic properties of the obtained samples, mechanisms and features of electrooxidation of some substrates on the obtained modified electrodes were studied. The prospect of the using of nanocomposites Pd/PAn), Au/PAn and PAn/PET in the sensors for the determination of the hydrazine, glyoxal and ammonia respectively is shown. For the first time, the possibility of reversible decomposition/resynthesis of magnesium borohydride has been determined due to use the nan confinement principle. Product Description popup.authors Бойчишин Лідія Михайлівна Даниляк Марія-Олена Михайлівна Добровецька Оксана Ярославівна Ковалишин Ярослав Степанович Кунтий Орест Іванович Макогон В.М. Марчук І.Є. Мороз Микола Володимирович Перевізник О.Б. Решетняк О.В. Салдан І.В. Стеців Ю.А. Яцишин М.М. popup.nrat_date 2020-04-02 Close