Liquid-phase hydrogenation of acetophenone over silica-supported Ni, Co and Cu catalysts: Influence of metal and solvent

Solvent effects in heterogeneous selective hydrogenation of acetophenone: differences between Rh/C and Rh/Al2O3 catalysts and the superiority of water as a functional solvent

“…[7][8][9][10][11] The group of Marchi et al investigated the selective hydrogenation of AP with a Ni/SiO2 catalyst in 10 organic solvents including protic polar, aprotic polar, and aprotic apolar ones. 12,13 They found that the rate of AP hydrogenation was even larger in cyclohexane than in aprotic polar solvents; the latter solvents were suggested to have strong interactions with the catalyst, as indicated by adsorption enthalpies, blocking its active sites. It is also indicated that the extent of solvent effects depends on supported metals used, being Ni > Co > Cu (all on SiO2).…”

“…It is also indicated that the extent of solvent effects depends on supported metals used, being Ni > Co > Cu (all on SiO2). 12,13 In their work, the group of Marchi et al reviewed previous results on solvent effects in the heterogeneous AP hydrogenation. 12,13 Shirai et al reported the superiority of water for the hydrogenation of AP with a Pd/C catalyst, which showed a higher activity in water as compared to the reactions in methanol, ethanol, and heptane.…”

“…12,13 In their work, the group of Marchi et al reviewed previous results on solvent effects in the heterogeneous AP hydrogenation. 12,13 Shirai et al reported the superiority of water for the hydrogenation of AP with a Pd/C catalyst, which showed a higher activity in water as compared to the reactions in methanol, ethanol, and heptane. 14 Recently, Subramaniam et al reported solvent effects on hydrogenation of different oxygenates in 10 solvents including water over a Ru/C catalyst and also indicated the superiority of water.…”

Utilization of Volatile Organic Compounds as an Alternative for Destructive Abatement

“…The main challenge in this reaction is in the optimizing the selectivity of the reaction due to possibility to form several different products [304]. In this purpose, also Ni, Rh, Pd, Ag, Ru-based monometallic catalysts have been studied [305][306][307][308]. Unsaturated ketones can be hydrogenated in aqueous medium over anchored Ru(II)-phenanthroline complexes.…”

Synthesis of Nickel Nanoparticles Supported on Carbon Using a Filter Paper as Biomorphic Pattern for Application in Catalysis

“…Nickel is an attractive catalytic active phase for the reforming of hydrocarbons and biomass for hydrogen production [13][14][15][16][17] and also for hydrogenation in a liquid phase 18 because of its optimal cost/activity rate compared with the noble metals. The main disadvantage is the tendency to deactivation by carbon deposition.…”