01964nas a2200181   4500008004100000022001400041245012700055210006900182260011000251300001600361490000600377520116900383100002201552700002701574700001901601700003301620856012901653       2016                        eng d  a2046-206900aHydrogenation of cinnamaldehyde to hydrocinnamaldehyde over Pd nanoparticles deposited on nitrogen-doped mesoporous carbon0 aHydrogenation of cinnamaldehyde to hydrocinnamaldehyde over Pd n  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcAPR  a44333-443400 v63 a<p>Palladium nanoparticles deposited on nitrogen-doped mesoporous carbon (NMC) were synthesized by simple ultrasonic-assisted method. This novel Pd-NMC catalyst was highly active and selective for the hydrogenation of cinnamaldehyde (CA) to hydrocinnamaldehyde (HCA) at room temperature (30 degrees C) under low H-2 pressure. The nitrogen-free mesoporous carbon (MC) and activated carbon (AC) were also employed as the support for Pd in the liquid-phase hydrogenation of CA. The incorporation of nitrogen into carbon matrix remarkably enhanced the catalytic activity and C=C bond hydrogenation selectivity (HCA selectivity of 93% with 100% CA conversion for Pd-NMC) in CA hydrogenation compared to the catalysts with no nitrogen (HCA selectivity of 66 and 47% for Pd-MC and Pd-AC, respectively). Moreover, Pd-NMC catalyst demonstrated an excellent recyclability without any loss in activity and HCA selectivity when it was reused for six times. The superior catalytic performance of Pd-NMC catalyst in CA hydrogenation is attributed to the small size of Pd nanoparticles due to presence of high nitrogen content (11.6 wt%) and mesoporous nature of NMC support.</p>1 aNagpure, Atul, S.1 aGurrala, Lakshmiprasad1 aGogoi, Pranjal1 aChilukuri, Satyanarayana, V.  uhttps://library.ncl.res.in/content/hydrogenation-cinnamaldehyde-hydrocinnamaldehyde-over-pd-nanoparticles-deposited-nitrogen