Preparation of palladium nanoparticles on alumina surface by chemical co-precipitation method and catalytic applications

Pd catalyst supported on ZrO2‐Al2O3 by double‐solvent method for methane oxidation under lean conditions

“…Developing a new catalyst with high activity and hydrothermal stability for the elimination is desired. [3,9,[14][15] Recently, Pd-based catalysts using ZrO 2 -Al 2 O 3 as a support material have shown enhanced performance in methane abatement of lean-burn NGVs emissions. [16][17][18][19] However, further improvement of the activity and thermal stability for these catalysts prepared by the conventional methods is a challenge, mainly due to difficulties in controlling Pd dispersion and reducibility which play an important role in the complete oxidation of methane.…”

Selective oxidation of allylic alcohols over highly ordered Pd/meso-Al2O3 catalysts

“…Detailed kinetic investigations, alongside in situ [8], [9] and [10] and operando studies [11], [12], [13] and [14] have provided conclusive evidence that allylic alcohol oxidation occurs via a redox mechanism, catalysed by electron deficient, surface Pd(II) species present as PdO. Kumar et al [15], Scott et al [16] and Hara et al [17] have likewise reported a heterogeneous Pd(II) active species responsible for aerobic alcohol selox, while homogeneous Pd(II) complexes are well known to catalyse such alcohol oxidations [18], [19] and [20]. Interestingly, surface PtO2 has also been recently reported as the active phase in the analogous Pt catalysed aerobic selox of allylic alcohols [21].…”

The Hiyama Cross‐Coupling Reaction: New Discoveries

“…Other supports useful to anchor palladium nanoparticles are aluminium19 and zinc oxides 20. These catalysts have shown to be effective in the coupling of aryl halides 5 and the trimethoxysilane 10 , affording the coupling products 8 with variable yields (50‐96%).…”