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Information × Registration Number 0215U007046, 0111U008240 , R & D reports Title Integrated project: Development of scientific fundamentals for formation and design of nanophase catalysts for heterogeneous redox processes popup.stage_title Head Orlyk Svitlana Mykytivna; Strizhak Petro Yevhenovich, Registration Date 27-01-2015 Organization L.V.Pisarzhevsky Institute of Physical Chemistry of the National Academy of Sciences of Ukraine popup.description2 It was established that the role of silver in the catalyst and zeolite oksydnoalyuminiyevoyi bases (Ag / Al2O3 and Ag / BEA) is the formation of redox and acid-base centers. Introduction of silver increases as the total number and strength of Lewis acid sites of the catalyst surface. Shown that the high activity of silver-oksydnoalyuminiyevyh catalysts in the selective recovery of NO C2, C4 alcohols in excess oxygen at concentrations achieved silver 0,3-1,0 wt.% (With content Al2O3 45-50 wt.%) And is due to its localization mainly in the form of cations and clusters - active centers SCR process. It was determined that increasing alumina content to 45-50 wt.% Of the catalyst Ag / Al2O3 / cordierite leads to increased activity of which is shown in the temperature drops achieving 95-100% conversion of NO and can be driven by the growing total number of acidic sites of Lewis responsible for activating reagents in the SCR process. It was established that the activity of Ag-containing zeolites type MOR, MFI, FAU and BEA in the SCR NO C2, C4 alcohols determined by the content of their silver and acid-base characteristics, which are caused by the ratio of Si / Al in the zeolite matrix frame. The most active are examples of catalytic compositions containing silver 3,0-4,0 wt.% Silica and value module 25-100. Revealed the extreme dependence of promoting the process of hydrogen SCR NO C2, C4 alcohols in zeolite catalysts Ag / BEA of silicate module (ratio Si / Al in the zeolite framework matrix). Demonstrated a significant difference in the catalytic activity makrokrystalichnoho iron, carbon nanotubes (CNT) and catalysts Fe / CNT in the hydrogenation of crotonic aldehyde. It is shown that the selectivity of the catalysts in the process of hydrogenation of unsaturated aldehydes due to the interaction of metal carrier. On the basis of kinetic studies revealed that a significant effect on the activity and selectivity of catalysts reveals spilover between hydrogen carrier nanoparticles deposited on the iron. It was found that the effect spiloveru depends on the size of nanoparticles. Established in work patterns can be used to develop efficient industrial iron catalyst hydrogenation particular catalyst Fischer-Tropsch synthesis. Showing inhibitory effect of iron nanoparticles in the liquid phase radical-chain oxidation of benzyl alcohol oxygen. Found that the dependence of the oxidation of benzyl alcohol oxygen on the size of the nanoparticles in the range of 1 - 30 nm is characterized by a curve with a maximum of nanoparticles of average size 8.8 nm. Our studies reveal a new approach to creating effective inhibitors okysnennnya that can be used to stabilize a variety of organic materials Product Description popup.authors Бичко Ігор Богданович Калішин Євген Юрийович Кирієнко Павло Іванович Попович Наталія Олексіївна Стрижак Петро Євгенович popup.nrat_date 2020-04-02 Close