Effect of the Detonation Nanodiamond Surface on the Catalytic Activity of Deposited Nickel Catalysts in the Hydrogenation of Acetyleneстатья
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Дата последнего поиска статьи во внешних источниках: 25 сентября 2013 г.
Аннотация:A comparative study is performed of the catalytic activity of nanosized nickel deposited on deto
nation synthesis nanodiamond (DND) and coal (CSUG) produced by burning sugar and crystalline quartz in
the hydrogenation of acetylene. Nanosized nickel is obtained through the thermal decomposition of nickel
formate under a dynamic vacuum. The catalysts are studied by means of scanning electron and transmission
electron microscopy, Xray fluorescence, IRspectroscopy, Xray diffraction, and pulse microcatalytic
method. It is shown that Ni/DND is an active catalyst of acetylene hydrogenation, considerably surpassing
Ni/quartz and Ni/CSUG. The apparent activation energy of the hydrogenation of acetylene is calculated, and
the region of the reaction are determined for all catalysts. It is found that the influence of the structure and
nature of a functional coating of nanodiamond on the catalytic activity of Ni/DND deposited catalyst in the
hydrogenation of acetylene. The ability of Ni/DND to hold active hydrogen is detected.