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Information × Registration Number 0215U001408, 0114U000702 , R & D reports Title "The development of new approaches to creating hierarchically porous zeolite materials as catalysts in acid-base reactions and transformations involving peroxides " popup.stage_title Head Shvets Oleksiy Vasylyovich, Registration Date 26-02-2015 Organization L.V.Pysarzhevsky Institute of Physical Chemistry of National Academy of Science of Ukraine popup.description2 First were obtained hierarchically porous Sn/Si and Ti/Si zeolite material MTW type, and B/Si, Al/Si zeolites BEA type by direct synthesis. Both types of zeolites has two types of Lewis acid sites with a total concentration within 40-50 mmol / g. Reflex position of pyridine complex with Lewis acid sites and the number of held pyridine depend on temperature, so acid sites are quite strong. UV spectroscopy shows the presence of a significant part of tetrahedral-coordinated atoms Ti in BEA zeolites. A comparative study of the catalytic activity of two-dimensional materials such as MFI and bulk zeolite in reaction of tetrahydropirylations of alcohol. It was established that the activity of studied zeolites increases with the concentration of surface active centers (with decreasing size of three-dimensional crystals of zeolites MFI, increasing the ratio of Si / Al in two-dimensional materials). Product Description popup.authors Ільїн В.Г. Конишева К.М. Курмач М.М. Опанасенко М.В. Соломаха В.М. Черненко Ж.В. Шамжи М.В. Швець О.В. Яремов П.С. popup.nrat_date 2020-04-02 Close