Nanoparticles cinnamaldehyde hydrogenation

In 1996, Liu et al. reported the selective hydrogenation of cinnamaldehyde, an a,/ -unsaturated aldehyde, to cinnamyl alcohol, an a,/ -unsaturated alcohol, by means of PVP-protected Pt/Co bimetallic colloids prepared by the polyol process [111]. The colloids were obtained as a dark-brown homogeneous dispersion in a mixture of ethylene glycol and diethylene glycol, and characterized by TEM and XRD. These authors prepared different samples of nanoparticles with Pt Co ratios of 3 1 and 1 1, the mean diameters of which measured 1.7 and 2.2 nm, respectively. These colloidal systems were also compared with the single metal-... 

Tessonnier JP, Pesant L, Ehret G, Ledoux MJ, Pham-Huu C (2005) Pd nanoparticles introduced inside multi-walled carbon nanotubes for selective hydrogenation of cinnamaldehyde into hydiocinnamaldehyde. Applied Catalysis A General 288 203-210. 

Scheme 5.6-10 2,4-hydrogenation of cinnamaldehyde using aerogel-supported ionic liquid catalyst material containing palladium nanoparticles [112]. 

The liquid-phase selective hydrogenation of the C=C bond in a, 3-unsaturated cinnamaldehyde was studied to show the benefit of the use of the CNTs support versus the traditional powder activated charcoal-based catalyst [75, 76]. The catalyst consisted of homogeneous palladium nanoparticles dispersed inside the carbon nanotubes. The characteristics of the Pd-based catalyst have already been detailed above. 

Polymer-immobilized bimetallic Pt-Co colloids exhibit high selectivity (up to 99.8%) in the reaction of hydrogenation of cinnamaldehyde to the corresponding alcohol. The application of polymer-protected nanoparticles is expected to lead to the discovery of new specific effects in catalysis. The cluster Pfti5(CO)3o] fixed on Sephadex is used to catalyze of the hydrogenation of selective redox-active cofactors. ... 

Ma H, Wang L, Chen L, Dong C, Yu W, Huang T, Qian Y. Pt nanoparticles deposited over carbon nanombes for selective hydrogenation of cinnamaldehyde. Catal Commun 2007 8 452-6. 

Zhang X, Guo YC, Zhi CZ, Gao JS, Xu CM. High performance of carbon nanombes confining gold nanoparticles for selective hydrogenation of 1,3-butadiene and cinnamaldehyde. J Catal 2012 292 213-26. 

One-Pot deposition of palladium on hybrid Ti02 nanoparticles application for the hydrogenation of cinnamaldehyde... 

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