Controlled synthesis of porous platinum nanostructures for catalytic applications.

Controlled synthesis of porous platinum nanostructures for catalytic applications.

Journal of nanoscience and nanotechnology (2014-04-23)

Yanqin Cao, Junwei Zhang, Yong Yang, Zhengren Huang, Nguyen Viet Long, Masayuki Nogami

ABSTRACT

Porous platinum, that has outstanding catalytic and electrical properties and superior resistant characteristics to corrosion, has been widely applied in chemical, petrochemical, pharmaceutical, electronic, and automotive industries. As the catalytic activity and selectivity depend on the size, shape and structure of nanomaterials, the strategies for controlling these factors of platinum nanomaterials to get excellent catalytic properties are discussed. Here, recent advances in the design and preparation of various porous platinum nanostructures are reviewed, including wet-chemical synthesis, electro-deposition, galvanic replacement reaction and de-alloying technology. The applications of various platinum nanostructures are also discussed, especially in fuel cells.

MATERIALS

Product Number

Brand

Product Description

373214

Sigma-Aldrich

Platinum, evaporation slug, diam. × L 0.6 cm × 1.2 cm, 99.99% trace metals basis

267155

Sigma-Aldrich

Platinum, sponge, ≥99.9% trace metals basis

327433

Sigma-Aldrich

Platinum, foil, thickness 0.125-0.135 mm, 99.9% trace metals basis

267163

Sigma-Aldrich

Platinum, wire, diam. 0.127 mm, 99.99% trace metals basis

357367

Sigma-Aldrich

Platinum, wire, diam. 0.10 mm, 99.99% trace metals basis

357359

Sigma-Aldrich

Platinum, wire, diam. 0.20 mm, ≥99.99% trace metals basis

303798

Sigma-Aldrich

Platinum, foil, thickness 0.05 mm, ≥99.9% trace metals basis

349372

Sigma-Aldrich

Platinum, foil, thickness 1.0 mm, 99.99% trace metals basis

349399

Sigma-Aldrich

Platinum, wire, diam. 1.5 mm, ≥99.9% trace metals basis

349364

Sigma-Aldrich

Platinum, foil, thickness 0.025 mm, 99.99% trace metals basis

204048

Sigma-Aldrich

Platinum, powder (coarse), 99.99% trace metals basis

GF66120533

Platinum, foil, not light tested, 25x25mm, thickness 0.002mm, as rolled, 99.95%

GF84938327

Platinum, foil, not light tested, 150x150mm, thickness 0.0075mm, as rolled, 99.95%

GF04867061

Platinum, wire reel, 5m, diameter 0.125mm, as drawn, 99.95%

GF05831120

Platinum, foil, not light tested, 50x50mm, thickness 0.025mm, as rolled, 99.95%

GF48427601

Platinum, foil, not light tested, 50x50mm, thickness 0.002mm, as rolled, 99.95%

GF48886228

Platinum, insulated wire, 0.2m, conductor diameter 0.125mm, insulation thickness 0.016mm, PTFE (polytetrafluoroethylene) insulation, 99.99%

GF08303330

Platinum, insulated wire, 1m, conductor diameter 0.025mm, insulation thickness 0.005mm, polyester insulation, 99.99%

GF88481357

Platinum, foil, 0.1m coil, thickness 0.030mm, coil width .7mm, as rolled, 99.95%

GF14220649

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

GF44234344

Platinum, tube, 50mm, outside diameter 1.2mm, inside diameter 1.0mm, wall thickness 0.1mm, as drawn, 99.95%

GF29464667

Platinum, microfoil, disks, 25mm, thinness 1.0μm, specific density 900μg/cm², permanent mylar 3.5μm support, 99.99+%

GF04974880

Platinum, wire reel, 0.05m, diameter 0.5mm, as drawn, 99.99+%

GF97661324

Platinum, tube, 500mm, outside diameter 0.95mm, inside diameter 0.60mm, wall thickness 0.175mm, as drawn, 99.95%

GF83014534

Platinum, insulated wire, 5m, conductor diameter 0.05mm, insulation thickness 0.0075mm, polyester insulation, 99.99%

GF83653016

Platinum, tube, 200mm, outside diameter 0.7mm, inside diameter 0.4mm, wall thickness 0.15mm, as drawn, 99.95%

GF66380711

Platinum, foil, 0.1m coil, thickness 0.045mm, coil width .75mm, as rolled, 99.95%

GF51059123

Platinum, foil, 0.1m coil, thickness 0.025mm, coil width .4mm, as rolled, 99.95%

GF91422132

Platinum, foil, 0.1m coil, thickness 0.05mm, coil width 1mm, as rolled, 99.99%

GF70707911

Platinum, foil, 0.05m coil, thickness 0.025mm, coil width 5mm, as rolled, 99.95%