Search academic texts

Information × Registration Number 0216U005894, 0114U001844 , R & D reports Title Development of catalysts based on VIII grup metals supported on carbon nanomaterials for tne hydrogenation of aromatic nitro compounds and carbon monoxide popup.stage_title Head Strizhak Petro Evgenovich, Registration Date 01-03-2016 Organization L.V.Pysarzhevsky Institute of Physical Chemistry of National Academy of Science of Ukraine popup.description2 Received a series of catalysts coated with palladium nanoparticles of a controlled size on hrafenopodibni structures including carbon nanotubes (CNT) and nitrogen-containing carbon nanotubes and a series of catalysts coated iron nanoparticles CNT. It was found that the nanoparticles are deposited evenly over the surface of the carrier, the amount of particles and their size distribution when plotted unchanged. The catalytic activity of the samples coated with palladium nanoparticles and colloidal solution of nanoparticles was investigated in the hydrogenation reaction by-nitrotoluolu and reaction water displacement. In the hydrogenation reaction by-nitrotoluolu characterized most active colloidal solution of palladium nanoparticles in while applying palladium on carbon carriers leads to a decrease in its activity. The lowest activity characterized sample 1% Pd / N-CNT, while the activity of 1% Pd / Graphite comparable with the commercial model Activity 1% Pd / SCT takes an intermediate value. Reduced activity after application palladium may be due to partial blocking of the surface of the metal in the metal carrier. Thus it is shown that the activity of commercial catalyst activity exceeds 10% Pd / C in terms of the mass of metal. In the reaction of water displacement determined that iron nanoparticles 6.5 nanometers in size, coated on carbon nanotubes achieve maximum conversion has a temperature of 300 0C. Iron nanoparticles of the same size, deposited on the SCT activity in the water shift reaction do not show. These data suggest a significant impact of nature and structure of the activity of the carbon carrier paladiy- and iron catalysts. Product Description popup.authors Cтрижак Петро Євгенович Бичко Ігор Богданович Кайданович Зінаїда Володимирівна Калішин Євген Юрійович popup.nrat_date 2020-04-02 Close