Membrane catalysts for partial hydrogenation of 1,3-butadiene: catalytic properties of palladium nanoclusters synthesized within diblock copolymer films

Adlayers of palladium particles and their aggregates on porous polypropylene hollow fiber membranes as hydrogenization contractors/reactors

“…Follow-up studies on the development of polymeric catalytic membranes were performed in the two following directions: (i) dense catalytic membranes [9][10][11][12][13][14][15][16][17][18] and (ii) porous catalytic membranes for both gas phase hydrogenation [19][20][21][22][23][24] and liquid phase hydrogenation [25][26][27][28][29][30][31][32][33][34][35].…”

Palladium Nanoparticle Catalyst Prepared in Poly(Acrylic Acid)-lined Channels of Diblock Copolymer Microspheres

“…Various industrial processes exist to prepare such dispersed catalysts . More recent academic endeavors have included their preparation in the cores of diblock copolymer micelles, − cores of triblock nanospheres, cores of dendrimers, − hydrophilic domains of diblock copolymer films, matrices of homopolymers, or surfaces of polymer microspheres . More easily, they were prepared from reducing metal salts in solvent using polymer − or small-molecule ligands − as dispersing agents.…”

The Partial Hydrogenation of 1,3‐Dienes Catalysed by Soluble Transition‐Metal Nanoparticles

“…[37] Palladium-NPs 2.0-3.0 nm in size prepared by H 2 reduction in the presence of a methyltetracyclododecene diblock copolymer (see Figure 2) as the stabiliser were reported to be an active nanocatalyst for the partial hydrogenation of 1,3-butadiene under solvent-free conditions. [38] This catalyst produced TOF values of up to 0.31 s À1 and butene selectivities of up to 92 %. Compared to the classical heterotopic catalysts, these catalysts produced lower 1-butene to 2-butene ratios ( % 0.9-0.5), with comparable (E)-2-butene to (Z)-2-butene ratios ( % 3.0-2.0).…”