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

205915

Sigma-Aldrich

Platinum black, black, powder, ≤20 μm, ≥99.95% trace metals basis

357375

Sigma-Aldrich

Platinum, wire, diam. 0.076 mm, ≥99.99% trace metals basis

267244

Sigma-Aldrich

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

327484

Sigma-Aldrich

Platinum, shot, ≤3 mm, ≥99.9% trace metals basis

349321

Sigma-Aldrich

Platinum, foil, thickness 0.25 mm, 99.99% trace metals basis

444685

Sigma-Aldrich

Platinum, wire, diam. 2.0 mm, 99.9% trace metals basis

349402

Sigma-Aldrich

Platinum, wire, diam. 0.25 mm, 99.9% trace metals basis

349348

Sigma-Aldrich

Platinum, foil, thickness 0.127 mm, 99.99% trace metals basis

349380

Sigma-Aldrich

Platinum, foil, thickness 0.1 mm, 99.9% trace metals basis

267821

Sigma-Aldrich

Platinum, wire, diam. 0.127 mm, 99.9% trace metals basis

520799

Sigma-Aldrich

Platinum black, low bulk density, ≥99.9% trace metals basis

298093

Sigma-Aldrich

Platinum, gauze, 100 mesh, 99.9% trace metals basis

520780

Sigma-Aldrich

Platinum black, fuel cell grade, ≥99.9% trace metals basis

GF35428406

Platinum, foil, 15x15mm, thickness 0.2mm, as rolled, 99.95%

GF37480798

Platinum, wire reel, 0.5m, diameter 0.25mm, annealed, may be used as one component of a thermocouple, 99.99%

GF60594442

Platinum, foil, 0.5m coil, thickness 0.025mm, coil width 8mm, as rolled, 99.95%

GF29981199

Platinum, wire reel, 0.1m, diameter 0.002mm, wollaston, 99.9%

GF25487387

Platinum, wire reel, 0.2m, diameter 1.0mm, hard, 99.95%

GF36280021

Platinum, foil, 0.2m coil, thickness 0.025mm, coil width .4mm, as rolled, 99.95%

GF96551354

Platinum, foil, 10mm disks, thickness 0.0075mm, as rolled, 99.95%

GF41858309

Platinum, foil, 0.2m coil, thickness 0.05mm, coil width 1mm, as rolled, 99.99%

GF74891302

Platinum, wire reel, 2m, diameter 0.08mm, hard, 99.9%

GF14090644

Platinum, wire reel, 1m, diameter 0.20mm, annealed, may be used as one component of a thermocouple, 99.99%

GF16313723

Platinum, wire reel, 1m, diameter 0.002mm, wollaston, 99.9%

GF85549832

Platinum, wire reel, 1m, diameter 0.02mm, as drawn, 99.9%

GF57762399

Platinum, foil, not light tested, 50x50mm, thickness 0.005mm, as rolled, 99.95%

GF58265488

Platinum, foil, not light tested, 50x50mm, thickness 0.004mm, as rolled, 99.95%

GF30259357

Platinum, foil, 25x25mm, thickness 0.125mm, as rolled, 99.95%

GF21472141

Platinum, rod, 10mm, diameter 4.0mm, 99.95%

GF94661657

Platinum, tube, 200mm, outside diameter 1.2mm, inside diameter 1.0mm, wall thickness 0.1mm, as drawn, 99.95%