Catalytic colloidal Pd dispersions in water-organic solutions of quaternary ammonium salt

Synthesis of monodispersed palladium nanoparticles to study structure sensitivity of solvent-free selective hydrogenation of 2-methyl-3-butyn-2-ol

“…ME-derived nanoparticles are widely used in catalytic reactions, mainly as a nanoparticle-containing MEs per se or deposited onto supports. The use of ME itself [18][19][20][21][22][23][24][25] implies the addition of extra components to the catalytic reaction mixture (hydrocarbon, water, surfactant, excess of a metal re-ducing agent). This leads to an increase of the reaction volume, and a catalytic reaction may be affected through "medium" and "solubilization" effects [26,27].…”

In situ formation of dispersed palladium nanoparticles in microemulsion: Efficient reaction system for ligand-free Heck reaction

“…Berkovich and Garti [24] reported that colloidal Pd was prepared by reducing Pd 2+ with sodium formate in a microemulsion in the presence of the cationic surfactant aliquate 336 (trioctylmethylammonium chloride) and the colloidal Pd was useful for the transfer hydrogenolysis of bromotoluene.…”

On the promoting effect by quaternary ammonium salts in the multiphase hydrodechlorination with hydrogen gas on Raney nickel catalyst

“…Such reverse micelles are used for extraction of bioactive compounds [6,7], and more recently for synthesis of metal nanoparticles in microemulsions [8][9][10]. On the other hand, colloidal nanoparticles of Pd can also be stabilized in solution by the quaternary salts (ionic liquids), resulting in an efficient catalytic system, for example, as used in C-C bond forming reactions [11].…”