Effect of surface hydrophilization on Pt/Sibunit catalytic activity in bicyclohexyl dehydrogenation in hydrogen storage application

Conversion of Phenol and Lignin as Components of Renewable Raw Materials on Pt and Ru-Supported Catalysts

“…Commercial carbon material Sibunit [ 12 ], produced by the Center of New Chemical Technologies of the Boreskov Institute of Catalysis of the Russian Academy of Sciences (Omsk, Russia) with average granule diameters of 1.5–1.8 mm was used as the support. Before use, Sibunite was subjected to oxidative treatment according to the previously described method [ 13 ]. Sibunit was impregnated with an aqueous solution of ruthenium hydroxychloride (Ru(OH)Cl 3 ), then the sample was dried in air at 80 °C and reduced in a hydrogen flow at 400 °C prior to the catalytic tests.…”

Kinetic Modeling of Hydrogen Production by Dehydrogenation of Polycyclic Naphthenes with Varying Degrees of Condensation

“…A prepared sample of 3 wt. % Pt/C [ 14 ] was used as a catalyst for both hydrogenation and dehydrogenation reactions. Platinum was dispersed onto the surface of a carbon carrier of Sibunit (Omsk, Russia, bulk density = 0.62 g/cm 3 ) by incipient wetness impregnation of the carrier with an aqueous solution of [H 2 PtCl 6 ] (wt.…”

“…Platinum was dispersed onto the surface of a carbon carrier of Sibunit (Omsk, Russia, bulk density = 0.62 g/cm 3 ) by incipient wetness impregnation of the carrier with an aqueous solution of [H 2 PtCl 6 ] (wt. % Pt = 36.3%) in accordance with the procedure [ 14 ]. The specific surface area of the catalyst was S BET = 304 m 2 /g, the average particle size of Pt d (Pt) = 2–3 nm, the dispersion of Pt D = 49%, and the average pore size R = 4 nm.…”

“…At the same time, analysis of the literature shows that the difficulty of achieving the equilibrium due to the reversible nature of the dehydrogenation reaction of polycyclic naphthenes causes great differences in the description of kinetic mechanisms, as well as the determination of the order of these reactions. Among the studied substrates, the kinetics of dehydrogenation is understood only for cyclohexane, in the description of which the 1st reaction order is established [ 11 , 12 , 13 , 14 , 15 ]. There is no reliable information in the literature for more complex naphthenic substrates.…”

Effect of Isomerization on the Reversible Reaction of Hydrogenation‐Dehydrogenation of ortho‐Terphenyl on a Pt/C Catalyst

“…Previously, our group studied various aspects of the application of hydrogenated aromatic substrates such as decaline, perhydroterphenyl isomers, perhydronaphthalene, perhydro‐ N ‐ethylcarbazol in hydrogen storage based on reversible hydrogenation of the aromatic substrates (hydrogen accumulation) and further dehydrogenation of the hydrogenated counterparts (hydrogen release) , . The focus was laid on the kinetics and thermodynamics of both hydrogenation and dehydrogenation reactions, though the contribution of structural isomerization of the substrates used in both stages of hydrogen storage has not been considered so far.…”