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Information × Registration Number 0225U003856, (0124U003972) , R & D reports Title Creation of new nanosized zeolite catalysts for "green" processes of obtaining biofuels and fine organic synthesis popup.stage_title Створення нових нанорозмірних цеолітних каталізаторів «зелених» процесів одержання біопалив та тонкого органічного синтезу Head Shcherban Nataliia D., Доктор хімічних наук Registration Date 02-09-2025 Organization Shcherban Nataliia D. popup.description1 Creation of highly active nanosized zeolite catalysts for "green" processes of obtaining biofuels and fine organic synthesis, in particular, using renewable raw materials (reactions of condensation, hydrogenation, hydrocracking, aromatization, etc.). popup.description2 A set of hierarchical zeolites with different structural types, variable incorporated heteroelements (B, Ga and Al) and morphology (nanoparticles, nanosheets and nanorods) obtained using Gemini-type surfactants was investigated as catalysts for the Prins cyclization of isoprenol and isovaraldehyde yielding a valuable perfume ingredient Florol ®. The highest yield of pyranol (ca. 80%) was reached over Al-MFI-nsh and Al-FER-nsh (only in 30 min) with the optimal acidity and developed mesoposity resulting in high TOF values (ca. 1100 and 2650 h-1, respectively) as well as the highest productivity (up to 46 gprod/gcat.h) reported ever for this reaction. A set of post-synthesized Sn-β zeolites with different Sn content prepared applying a precise tuning of the amount of incorporated Sn without any additional alkaline treatment was investigated as catalysts for the conversion of glucose to methyl lactate – feedstock for synthesis of biodegradable polylactates. The highest yield of methyl lactate (63.5%) was reached with Sn-β-19-20 where close to the stoichiometric (regarding Si/Al) Si/Sn ratio was applied resulting in an elevated concentration of catalytically active Sn-associated Lewis acid sites. An increase in the fraction of silanol groups was found to reduce the yield and selectivity to the desired product being related to the side reactions over defect silanols. The influence of furfural purity, reagent ratio, and temperature on the catalytic activity of calcium oxide in the aldol condensation reaction of furfural with cyclopentanone was revealed. It was shown that the highest yield of the desired product 2-(2-furylmethylidene)cyclopentanone, 57%), was achieved at the furfural/catalyst mass ratio of 10:1 and the cyclopentanone/furfural molar ratio of 15:1 at 130°C. The physicochemical and photocatalytic properties of synthesized semiconductor nanostructures (based on titanium dioxide, MXene, etc.) in hydrogen evolution, dye degradation, etc. were investigated. Product Description popup.authors Shcherban Nataliia D. popup.nrat_date 2025-09-02 Close