Bio-palladium: from metal recovery to catalytic applications.

Bio-palladium: from metal recovery to catalytic applications.

Microbial biotechnology (2011-05-11)

Simon De Corte, Tom Hennebel, Bart De Gusseme, Willy Verstraete, Nico Boon

RÉSUMÉ

While precious metals are available to a very limited extent, there is an increasing demand to use them as catalyst. This is also true for palladium (Pd) catalysts and their sustainable recycling and production are required. Since Pd catalysts exist nowadays mostly under the form of nanoparticles, these particles need to be produced in an environment-friendly way. Biological synthesis of Pd nanoparticles ('bio-Pd') is an innovative method for both metal recovery and nanocatalyst synthesis. This review will discuss the different bio-Pd precipitating microorganisms, the applications of the catalyst (both for environmental purposes and in organic chemistry) and the state of the art of the reactors based on the bio-Pd concept. In addition, some main challenges are discussed, which need to be overcome in order to create a sustainable nanocatalyst. Finally, some outlooks for bio-Pd in environmental technology are presented.

MATÉRIAUX

Référence du produit

Marque

Description du produit

203939

Sigma-Aldrich

Palladium, powder, 99.995% trace metals basis

326666

Sigma-Aldrich

Palladium, powder, <1 μm, ≥99.9% trace metals basis

686468

Sigma-Aldrich

Palladium, nanopowder, <25 nm particle size (TEM), ≥99.5%

203998

Sigma-Aldrich

Palladium, powder or granules, 99.99% trace metals basis

267120

Sigma-Aldrich

Palladium, foil, thickness 0.025 mm, 99.9% trace metals basis

267082

Sigma-Aldrich

Palladium, sponge, 99.9% trace metals basis

464651

Sigma-Aldrich

Palladium, powder, <75 μm, 99.9% trace metals basis

348694

Sigma-Aldrich

Palladium, wire, diam. 0.5 mm, 99.9% trace metals basis

348678

Sigma-Aldrich

Palladium, foil, thickness 1.0 mm, 99.9% trace metals basis

267112

Sigma-Aldrich

Palladium, wire, diam. 1.0 mm, 99.9% trace metals basis

287474

Sigma-Aldrich

Palladium, foil, thickness 0.5 mm, 99.9% trace metals basis

348643

Sigma-Aldrich

Palladium, foil, thickness 0.25 mm, 99.98% trace metals basis

GF39094904

Palladium, tube, 50mm, outside diameter 1.0mm, inside diameter 0.8mm, wall thickness 0.1mm, as drawn, 99.95%

373206

Sigma-Aldrich

Palladium, evaporation slug, diam. × L 0.6 cm × 0.6 cm, 99.95% trace metals basis

GF19845120

Palladium, rod, 50mm, diameter 4.0mm, 99.95%

GF81435146

Palladium, rod, 100mm, diameter 2.0mm, 99.95%

GF73152648

Palladium, rod, 10mm, diameter 6.0mm, 99.95%

GF17478445

Palladium, foil, 25x25mm, thickness 0.50mm, as rolled, 99.99+%

GF99541985

Palladium, tube, 200mm, outside diameter 2.0mm, inside diameter 1.6mm, wall thickness 0.2mm, as drawn, 99.95%

GF89451489

Palladium, rod, 50mm, diameter 2.0mm, 99.95%

GF04041403

Palladium, wire reel, 1m, diameter 0.05mm, as drawn, 99.9%

GF68272588

Palladium, rod, 25mm, diameter 6.0mm, 99.95%

GF61398197

Palladium, wire reel, 0.05m, diameter 1.0mm, hard, 99.95%

GF03781863

Palladium, foil, light tested, 25x25mm, thickness 0.025mm, as rolled, 99.95%

GF42154051

Palladium, foil, light tested, 50x50mm, thickness 0.025mm, as rolled, 99.99+%

GF84888297

Palladium, microfoil, disks, 25mm, thinness 0.25μm, specific density 303.4μg/cm², permanent mylar 3.5μm support, 99.99%

GF90054659

Palladium, rod, 50mm, diameter 6.0mm, 99.95%

GF35196330

Palladium, tube, 100mm, outside diameter 2.0mm, inside diameter 1.6mm, wall thickness 0.2mm, as drawn, 99.95%

GF50683631

Palladium, tube, 50mm, outside diameter 2.0mm, inside diameter 1.6mm, wall thickness 0.2mm, as drawn, 99.95%

GF65598171

Palladium, wire reel, 0.2m, diameter 0.25mm, as drawn, 99.99+%