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The selectivity of alkyne hydrogenation on Pd depends on the subsurface chemistry. CO blocks the dynamic state of the catalyst and turn it into a robust, selective configuration.
Various reaction parameters including temperature, solvent, base, substrates and additives influence the palladium leaching in Suzuki coupling reactions catalyzed by Pd/Al 2 O 3 . An efficient palladium dissolution–re-deposition process ensures high catalyst activity.
Photo-oxidation of cyclohexane over TiO 2 yields surface adsorbed Cyclohexanone. Desorption of this product is increased by silylation of the TiO 2 surface, reducing the rate of catalyst deactivation.
The rate of photocatalytic hydrogen production r H 2 from methanol/water vapours over noble metal (NB) – modified TiO 2 and the selectivity to different methanol oxidation products were found to correlate with the NB work function and with NB particles’ size and dispersion. They sensibly...
Chiral Schiff bases with a bromo- and iodo-functionalized naphthyl backbone proved to be efficient ligands for the vanadium-catalyzed asymmetric oxidation of aryl methyl sulfides in dichloromethane and toluene with up to 99% ee and moderate-to-high isolated yields.
The Au 0 /Au δ+ ratio and the amount of water-derived species on the surface of Au/CeO 2 catalysts were found to be two important parameters affecting the activities.
DFT investigations combined with high-resolution XPS and 1 H MAS solid-state NMR characterization were carried out to elucidate the mechanism of Ti-modification on Phillips catalyst for ethylene polymerization.
Pd loaded on USY zeolite exhibited very high activity in Suzuki–Miyaura reactions. The active species was proposed to be the atomic Pd anchored to the strong acid sites of USY.
Energy level diagram (calculated) for breaking the C–H bond of methane. Steady state output from the reactor at different temperatures, for methane dry reforming. The catalyst is Pt-doped CeO 2 .
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