Remarkable catalytic activity of polymeric membranes containing gel-trapped palladium nanoparticles for hydrogenation reactions

Polymeric flat-sheet membranes and hollow fibers were prepared via UV photo-initiated polymerization of acrylic acid at the surface commercial polyether sulfones (PES) membranes. These polymeric materials permitted to immobilize efficiently palladium nanoparticles (PdNP), which exhibited a mean diameter in range 4?6 nm. synthesized by chemical reduction Pd(II) precursors presence corresponding support. We successfully applied as-prepared catalytic hydrogenation reactions under continuous flow conditions. Flat sheet more active than due configuration defavorable operating Actually, various functional groups (i.e. CC, CC NO2) reduced flow-through configuration, mild conditions (between 1.4 2.2 bar H2 60 °C, using 3.2 mol% Pd loading), archiving high conversions short reaction times (12?24 s).