Modification effects of magnetic supports and bimetallic structures on palladium nanocluster catalysts

Interstitial modification of palladium nanoparticles with boron atoms as a green catalyst for selective hydrogenation

“…Most studies in the literature have focused on using Pt-based catalysts to achieve high CNB hydrogenation while at the same time maintaining low rates of hydrodechlorination [27][28][29] . Meanwhile, conventional Pd based catalysts generally offer significantly lower selectivity due to aryl-chloride bond cleavage [30][31][32] . Furthermore, the poor activity and severe leaching of Pb to form PbCl 2 render Lindlar catalysts totally unsuitable for this application 1,32 .…”

Selective Hydrogenation of p-Chloronitrobenzene on Nanosized PdNiB Catalysts

“…This phenomenon has been known as a quantum effect [10][11][12][13]. Magnetic enhancement has been expected in Pd clusters owning to their finite size because Pd does not polarize magnetically in bulk metal state, but has giant magnetic moment in the present of ferromagnetic 3d transition metals [14][15][16][17][18]. One could successfully prepare chemically monodispersed ultrafine Pd and bimetallic PdNi particles [17][18][19].…”

“…In order to improve the selectivity to CAN in the hydrogenation of CNB over Pd catalysts, several strategies have been developed, such as introducing some promoting or inhabiting additives to the solution phase or to the catalysts, alloying Pd with other metals, applying partly poisoned catalysts, and modulating the metal/support interaction in supported Pd catalysts. PdB has been reported to be an active catalyst than Pd [14][15][16][17][18][19].…”

Structural analysis of platinum–palladium nanoparticles dispersed on titanium dioxide to evaluate cyclo-olefines reactivity

“…Specifically, Pt-Pd bimetallic systems have been used in unsaturated hydrocarbons hydrogenation reactions: hydrogenation of unsaturated hydrocarbons and aromatics [4][5][6][7], hydrogenation of o-chloroaniline to chloronitrobenzene, tetraline in the presence of hydrogen sulfide [8][9][10][11], since these systems are highly resistant to poisoning by sulfur and nitrogen. It is also important to note the high activity on hydrogenation reactions.…”