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Information × Registration Number 0223U004757, 0123U102607 , R & D reports Title Design of nanocomposite metal-oxide catalysts for the compatible oxidative conversion of C1-4-alkanes and carbon dioxide with the production of hydrogen/synthesis gas, valuable organic compounds popup.stage_title Head Soloviov Serhii О., Доктор хімічних наук Registration Date 01-12-2023 Organization L. V. Pisarzhevskii Institute Of Physical Chemistry of The National Academy of Sciences of Ukraine popup.description2 Research object – Ni-Al oxide systems deposited on cordierite and BEA zeolite; Ga, Cr, Zn-containing BEA zeolites; Ni-Bi-Mo metal-oxide systems deposited on Al2O3. Research subject – an effect of metal-oxide and zeolite catalysts’ physico-chemical characteristics on activity and selectivity in dry reforming of methane (DRM) and CO2-mediated oxidative dehydrogenation of C3-4-alkanes (СО2-ODH of propane and n-butane). Purpose of work – a purposeful design of effective catalysts based on metal-oxide systems and BEA type zeolites for dry/(super-)dry conversion of methane into synthesis gas with an adjustable H2/СО ratio; СО2-ODH of propane and n-butane into valuable olefins, dienes. Research methods – physico-chemical methods for catalyst and catalytic reaction investigation: kinetic one with chromatographic control, XRD, SEM, EDX, XPS, FTIR (with pyridine), low-temperature N2 ad(de)sorption, NH3/CO2-TPD, H2-TPR. Results and novelty: As a result of the project stage implementation, the metal-oxide and metal-zeolite catalysts for DRM, СО2-ODH of propane and n-butane were synthesized, and their catalytic properties were investigated. The high Ni-BEA catalysts’ activity and stability to carbonation during DRM is established to be associated with a localization of finely dispersed nickel in the zeolite T-positions. СО2-ODH of propane over Cr/Zn-BEA catalysts occurs through direct dehydrogenation of propane combined with the reverse water shift reaction; the process rate is determined by the catalyst surface acid-base characteristics. During СО2-ODH of n-butane the role of Ni-Bi-Mo/Al2O3 weak and strong surface acid sites consists in the adsorption of butene as an intermediate, which is necessary for the next dehydrogenation into butadiene. The final product description – new knowledge about the catalytic properties of d- and p-element based systems deposited on oxide and zeolite supports in DRM and oxidative dehydrogenation of C3-4-alkanes. Product Description popup.authors Vlasenko Nina V. Zikrata Oksana V. Kapran Andrii Yu. Larina Olga V. Nychyporuk Yuriy M. Orlyk Svitlana M. Pertko Oleksandra P. Samoilenko Denys E. Chedryk Valeryi I. popup.nrat_date 2023-12-01 Close