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Mostrando ítems 11-20 de 501
Methane combustion over PdO-alumina catalysts: The effect of palladium precursors
(2006)
The role of palladium precursors and the preparation route in the catalytic properties of PdO/Al2O3 catalysts toward methane oxidation was investigated in this paper. The catalysts were prepared using palladium chloride, ...
Palladium-supported catalysts in methane combustion. Comparison of alumina and zirconia supports
(Brasil, 2012)
Palladium catalysts supported on alumina and zirconia were prepared by the impregnation method and calcined at 600 and 1000 ºC. Catalysts were characterized by BET measurements, XRD, XPS, O2-TPD and tested in methane ...
Methoxycarbonylation of Styrene Using a New Type of Palladium Complexes Bearing P,N-donor Ligands as Catalysts
(Springer, 2015)
Palladium complexes of the type [Pd(L)Cl(PPh3)]Cl (L = 2-diphenylphosphinoamino)pyrimidine, or 2-diphenylphosphinoaniline), generated in situ by addition of one equivalent of PPh3 to the corresponding neutral complexes ...
Palladium–tin catalysts on conducting polymers for nitrate removal
(Elsevier, 2009-11-25)
Palladium–tin catalysts were prepared by successive impregnation or co-impregnation onto polyaniline and polypyrrole. The catalytic tests showed that this type of catalyst is active for nitrate reduction. The use of polymer ...
New palladium (II) complexes containing phosphine-nitrogen ligands and their use as catalysts in aminocarbonylation reaction
(John Wiley and Sons Ltd, 2019)
Aminocarbonylation of aryl halides, homogeneously catalysed by palladium, is an efficient method that can be employed for obtaining amides for pharmaceutical and synthetic applications. In this work, palladium (II) complexes ...
Hydrogenation of N-benzylideneaniline by palladium (II) catalysts with phosphorus-nitrogen ligands using formic acid as a renewable hydrogen source
(Elsevier B.V., 2019)
This paper reports the hydrogenation of N-benzylideneaniline catalysed by Pd(II) compounds containing heterobidentated phosphorus-nitrogen (PN) ligands. The general formulas of the catalysts are cis-[PdCl2(L1)] and ...
On the role of Pd β-hydride in the reduction of nitrate over Pd based catalyst
(Elsevier Science, 2008-10)
Two monometallic palladium catalysts supported on γ-Al2O3 were synthesized using different precursors, Pd(AcAc)2 and Pd(NO3)2, while Pd-Cu/γ Al2O3 catalysts were prepared from those parent catalysts. The samples were tested ...
Liquid-Phase Selective Hydrogenation of Hexa-1,5-diene and Hexa-1,3-diene on Palladium Catalysts. Effect of Tin and Silver Addition
(Elsevier, 2000-10)
The liquid-phase hydrogenation of hexa-1,5-diene and hexa-1,3-diene on alumina-supported palladium catalysts is investigated with special attention paid to the effects of tin or silver addition. All catalysts show a global ...