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Information × Registration Number 0224U001296, 0123U102170 , R & D reports Title Development of new functional nanostructured membranes and catalysts for oxidation of C-H-, H(HO)C-containing compounds of natural and synthetic origins popup.stage_title Head Sheparovych Roman B., Кандидат хімічних наук Registration Date 19-01-2024 Organization Department of Physical Chemistry of Combustible Minerals of the Institute of Physical and Organic Chemistry and Coal Chemistry. L.M. Litvinenko of the National Academy of Sciences of Ukraine popup.description2 The object of the research is catalytic system of transition metals (Mn, V, Cu) with N-hydroxyimides for oxidation of organic substrates, polymer hybrid membranes based on acrylic monomers, magnetically separable nanostructured core-shell type CuO catalyst. The research subject is catalytic oxidation of organic substances by oxygen using organocatalyst N-hydroxyphthalimide and a heterogeneous catalyst; synthesis and investigation of polymer membranes with proton-conducting and ion-exchange properties; catalytic properties of nanocomposites in the Fenton system; influence of temperature and pH of the environment on the oxidation efficiency. This work aims at the development of new catalytic systems based on metal oxides and N-hydroxyimides for the oxidation of organic substrates by oxygen via C-H bonds; synthesis of amphiphilic polymer hybrid membranes with high proton-conducting and ion-exchange properties; creation of magnetically separable CuO Fenton catalysts of core-shell type. The mechanism of catalysis by N-hydroxyimides during oxidation by O2 was investigated. We showed the essential role of the reaction between phthalimide-N-oxyl radicals and hydroperoxide formed in the reaction. We obtained the general kinetic equation of catalysis that takes into account this reaction. A mechanism of homogeneous-heterogeneous catalysis was proposed. Сrosslinked polymer membranes were synthesized via UV-initiated radical copolymerization of acrylic monomers: acrylonitrile, acrylic acid and 2-acrylamido-2-methylpropanesulfonic acid with crosslinker N,N'-methylene (bis)acrylamide. The analysis of physico-chemical properties proved that these membranes can be used in low-temperature solid-state fuel cells. The catalytic activity of the heterogeneous nanostructured catalyst SiO2/CoFe2O4/SiO2/CuO in the Fenton system was investigated and the effect of medium pH and temperature on the oxidation efficiency was determined. Catalyst can be used for fine purification of wastewater. Product Description popup.authors Yevchuk Iryna Yu. Demchyna Oksana I. Zhyhailo Mariia Zaborovskiy Andriy B Makido Olena Yu. Maksym Dariya S Musiy Rostyslav Novokhatko Anastasia O Opeyda Yosyp О. Khavunko Oxana Yu. Khovanets Halyna I. popup.nrat_date 2024-01-19 Close