Université de Neuchâtel

Highly selective C = C bond hydrogenation in α,β-unsaturated ketones catalyzed by hectorite-supported ruthenium nanoparticles

Khan, Farooq-Ahmad ; Vallat, Armelle ; Süss-Fink, Georg

In: Journal of Molecular Catalysis A: Chemical, 2010, vol. 355, p. 168–173

Metallic ruthenium nanoparticles intercalated in hectorite (particle size ∼7 nm) were found to catalyze the specific hydrogenation (conversion 100%, selectivity > 99.9%) of the carbon–carbon double bond in α,β-unsaturated ketones such as 3-buten-2-one, 3-penten-2-one, 4-methyl-3-penten-2-one. The catalytic turnovers range from 765 to 91,800, the reaction conditions being very mild...

Université de Neuchâtel

Highly selective low-temperature hydrogenation of furfuryl alcohol to tetrahydrofurfuryl alcohol catalysed by hectorite-supported ruthenium nanoparticles

Khan, Farooq-Ahmad ; Vallat, Armelle ; Süss-Fink, Georg

In: Catalysis Communications, 2011, vol. 12, no. 15, p. 1428–1431

Metallic ruthenium nanoparticles intercalated in hectorite (particle size ~ 4 nm) were found to catalyse the hydrogenation of furfuryl acohol to give tetrahydrofurfuryl alcohol in methanolic solution under mild conditions. The best results were obtained at 40 °C under a hydrogen pressure of 20 bar (conversion 100%, selectivity > 99%). After a total turnover number of 1423, the hectorite...

Université de Neuchâtel

Shape- and Size-Selective Preparation of Hectorite-Supported Ruthenium Nanoparticles for the Catalytic Hydrogenation of Benzene

Süss-Fink, Georg ; Khan, Farooq-Ahmad ; Boudon, Julien ; Spassov, Vladislav

In: Journal of Cluster Science, 2009, vol. 20, no. 2, p. 341-353

The cationic organometallic aqua complexes formed by hydrolysis of [(C6H6)2RuCl2]2 in water, mainly [(C6H6)Ru(H2O)3]2+, intercalate into white sodium hectorite, replacing the sodium cations between the anionic silicate layers. The yellow hectorite thus obtained reacts in water with...