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enantioselectivities [ 1 – 6 ], although the C=C double bond and C=N double bond have not been hydrogenated efficiently. Generally, the hydrogenations of prochiral ketones were carried out under high hydrogen pressure (9 MPa) in an autoclave. Under these conditions

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Introduction This work deals with two aspects of catalysis. The first one is the mechanism of hydrogen oxidation on silver. This reaction is essential for chemical kinetics and catalysis as a model catalytic redox reaction. It

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Pollack Periodica
Authors: Alex Szakál, Gerhard Krexner, Andreas Grill, György Káli, Márton Markó, and László Cser

., Beaudry B. J. The effect of impurities, particularly hydrogen on the lattice parameters of the “ABAB” rare earth metals, Journal of Less Common Metals , Vol. 25, No. 1, 1971, pp. 61–73. Beaudry B. J

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Introduction The surface diffusion of active species plays an important role in heterogeneous catalytic reactions [ 1 ], especially the diffusion of hydrogen species on the catalyst surface. Hydrogen molecules in the gaseous

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Introduction The selective hydrogenation of aromatic ketones to aromatic alcohols is an important reaction in the fine chemical industry [ 1 – 3 ]. So far, the hydrogenation of acetophenone has been successfully studied on Pd

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Introduction The percentage of hydrogen in biogas obtained through fermentation under certain conditions has recently gained much in significance [ 1 , 2 ]. This hydrogen is usually considered as an energy source to run fuel

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complex. Though palladium, platinum, rhodium and ruthenium complexes have been anchored to a variety of supports, palladium complexes find an important place in the hydrogenation of nitro compounds under mild conditions [ 7 – 10 ]. In our earlier study, we

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Introduction The hydrogenation of mononitroaromatic compounds to aromatic amines is ordinarily carried out in vapor-phase reactions using either a fixed bed or fluidized catalyst. However, the low vapor pressures and thermal

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ethyl lactate to 1,2-PDO is usually studied under heterogeneous catalytic conditions in the presence of hydrogen [ 1 – 7 ]. For example, Luo et al. reported that RuB/γ-Al 2 O 3 [ 1 – 3 ] and RuB/SBA-15 [ 4 ] are effective catalysts for the hydrogenation

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Introduction The selective hydrogenation of α,β-unsaturated aldehydes to the corresponding unsaturated alcohol is important in fine chemistry, due to the added value of these products. It is well known that the C=C group is

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