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Information × Registration Number 0214U000252, 0112U004389 , R & D reports Title Getting a new generation of catalysts hydrogenation processes based on graphene structures popup.stage_title Head Strizhak Petro, Registration Date 04-02-2014 Organization L.V.Pysarzhevsky Institute of Physical Chemistry of National Academy of Science of Ukraine popup.description2 Retrieved catalysts coated with platinum nanoparticles of controlled size on hrafenopodibni structures, in particular , carbon nanotubes (CNT ), nitrogen-containing carbon nanotubes and graphene material. Platinum nanoparticles obtained restoration of H2PtCl6 • 6H2O ethylene glycol in the presence of a stabilizer polivinidpirrolidonu . The nanoparticles are characterized by low values ??of standard deviation , the average size of nanoparticles was varied in the range of 2,6-8,4 nm. When coated nanoparticles are uniformly distributed over the surface of carrier particle size and size distribution when plotted changes. The use of catalysts are prepared by co-precipitation leads to the formation of carbon nanotubes less affected by other forms of carbon than with impregnated catalysts and nanoparticles of Ni, Co and Fe, obtained from the salts of the metals . Increased purity carbon nanotubes due to the formation of mixed oxides in the preparation spivosadzhenyh catalyst that enhances the interaction between metal and support. For catalysts obtained by impregnation and nanoparticles on Ni, Co and Fe, obtained from their salts in the synthesis of metal nanoparticles aggregation occurs to clusters of larger than 100 nm are formed amorphous carbon. It was established that, depending on the mechanism of growth of carbon nanotubes , metal catalyst nanoparticle size can make a difference in the diameters of the nanotubes : the case of the formation of carbon nanotubes for the " reference " mechanism of growth of the size of the nickel nanoparticles determine their diameters . With the formation of nanotubes for " kinchykovym " mechanism of nickel nanoparticle size determines the diameter of carbon nanotubes . Received a series of catalysts with deposited platinum nanoparticles on carbon materials . It is shown that such systems based on platinum hrafenopodibnyh structures exhibit catalytic activity in the Fischer -Tropsch process . Found that graphene and carbon nanotubes material showing catalytic activity in the Fischer -Tropsch process , which is the first example of catalytic carbon material in the process. Product Description popup.authors Cтрижак Петро Євгенович Бичко Ігор Богданович Калішин Євген Юрійович popup.nrat_date 2020-04-02 Close