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Information × Registration Number 0221U105136, 0115U003914 , R & D reports Title Physicochemical foundation of selection of natural and synthetic supports for metal-complex catalysts intended for redox reactions with participation of ozone, carbon monoxide, and sulfur dioxide popup.stage_title Head Rakytska Tetiana L., Доктор хімічних наук Registration Date 07-06-2021 Organization Odessa I. I. Mechnikov National University popup.description2 In the work for the first time, some conditions for activation of Ukrainian natural sorbents and their use as supports in the metal complex catalytic compositions have been grounded. The chemisorptions-catalytic mechanism of sulfur dioxide absorption by clinoptilolite (H-CLI-1) modified with copper(II) chloride has been founded. Sorption and protection parameters of monometallic compositions, MiClj/N-CLI (M = Cu(II), Cо(II), Fe(III), Mn(II), Cd(II)), in the process of sulfur dioxide chemisorptions-catalytic oxidation with air oxygen have been determined. Long-time tests of the catalyst for carbon monoxide oxidation, К2PdCl4-Cu(NO3)2-КBr/Н-CLI-0.5, showed that its activity decreased from 95 % to 53 % in the presence of sulfur dioxide. The data concerning CO protection properties of copper-palladium complexes anchored on natural (N-Tr(K)) and modified (300-Tr(K) and H2O-Tr(K)) tripolis showed a higher activity of the latter. Kinetic investigations of some catalytic compositions for low-temperature ozone decomposition showed that their activity depended on the 3d metal nature and decreased in the orders Co(II) > Mn(II) >> Cu(II) and Mn(II) > Cо(II) > Cu(II).for MCl2/N-BT(1)* and MCl2/N-Bent, respectively. It has been found that, on the surface of synthetic materials (SM) such as alumogel ( -Al2O3), silica gels (KSNG and KSK), and synthetic zeolites (KA, NaA, and NaX), the ion-exchange mechanism of metal complex catalyst formation is realised. Values of an absorbing capacity of SO2 by synthetic zeolites decrease in the order NaX > NaA > KA, and modification of them with solutions of MСl2 (M = Сu(II), Co(II), Mn(II)) results in substantial increase in amounts of sulphur dioxide absorbed. Protection and sorption parameters of MCl2/SMs depend on the nature of both metals and supports. Oxide forms of iron (?-, ?-Fe2O3, ?-, ?-FeOOH and their mixtures) and manganese (MnO2 and Mn2O3) both dispersed and anchored on CLI and SiO2 were synthesized by different methods at differe  Product Description popup.authors Kiose Tatyana O Raskola Ludmila A Truba Alla Sergeevna popup.nrat_date 2021-06-07 Close