Search academic texts

Information × Registration Number 0207U004392, 0102U007217 , R & D reports Title Fundamental principles of the creation of the zeolites, molecular sieves, and various functional composite matherials on this basis popup.stage_title Head Ilyin Volodymyr Georgyovych, Доктор хімічних наук Registration Date 05-03-2007 Organization L.V.Pysarzhevsky Institute of Physical Chemistry of National Academy of Science of Ukraine popup.description2 Conditions and characters of template formation of mesostructural and mesoporous materials, especially mesoporous molecular sieves, on basis of aluminum and tungsten oxides with specific surface area up to 510 m2/g, sorption volume up to 0.74 cm3/g, pore diameter from 3.5 to 5.5 nm and microporous materials on basis of molybdenum oxide were determined. Mesoporous vanadium phosphates with combination of moderated (up to 0.74 mmol/g) and superacid sites with thermosorption maximum of ammonia about 640 °С (up to 0.7 mmol/g) were obtained. The influence of P/V ratio on the concentration and strength of acid sites was found. Acid treatment of zirconia, especially tungsten containing, increase considerably stability of the mesostructure at detemplating and favors simultaneously the surface functionalization with sulfate and phosphate groups. These processes increase catalytic activity and acidity in reactions of synthesis of ETBE and SCR NOx by methane Product Description popup.authors popup.nrat_date 2020-04-02 Close