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

349380

Sigma-Aldrich

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

349321

Sigma-Aldrich

Platinum, foil, thickness 0.25 mm, 99.99% 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

205915

Sigma-Aldrich

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

349348

Sigma-Aldrich

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

520780

Sigma-Aldrich

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

357375

Sigma-Aldrich

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

327484

Sigma-Aldrich

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

267821

Sigma-Aldrich

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

GF22496328

Platinum, tube, 100mm, outside diameter 0.6mm, inside diameter 0.5mm, wall thickness 0.05mm, as drawn, 99.95%

GF76114313

Platinum, rod, 50mm, diameter 1.25mm, 99.95%

GF19578831

Platinum, wire reel, 0.05m, diameter 0.20mm, annealed, may be used as one component of a thermocouple, 99.99%

GF30259357

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

GF40734952

Platinum, tube, 1000mm, outside diameter 0.6mm, inside diameter 0.5mm, wall thickness 0.05mm, as drawn, 99.95%

GF94661657

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

GF91869227

Platinum, tube, 100mm, outside diameter 0.7mm, inside diameter 0.4mm, wall thickness 0.15mm, as drawn, 99.95%

GF01692952

Platinum, wire reel, 0.05m, diameter 0.25mm, as drawn, 99.998%

GF15342016

Platinum, tube, 500mm, outside diameter 1.2mm, inside diameter 1.0mm, wall thickness 0.1mm, as drawn, 99.95%

GF92036235

Platinum, foil, 25x25mm, thickness 0.125mm, as rolled, 99.99+%

GF91208909

Platinum, microfoil, disks, 25mm, thinness 0.1μm, specific density 120μg/cm², permanent mylar 3.5μm support, 99.99%

GF78532319

Platinum, wire reel, 0.05m, diameter 0.175mm, as drawn, 99.95%

GF22018553

Platinum, tube, 50mm, outside diameter 3.0mm, inside diameter 2.8mm, wall thickness 0.1mm, as drawn, 99.95%

GF72819715

Platinum, foil, 25x25mm, thickness 0.25mm, as rolled, 99.99+%

GF72566657

Platinum, foil, 0.1m coil, thickness 0.029mm, coil width .34mm, annealed, 99.99%

GF30985050

Platinum, tube, 50mm, outside diameter 6mm, inside diameter 5.6mm, wall thickness 0.2mm, as drawn, 99.95%

GF94628852

Platinum, tube, 500mm, outside diameter 0.5mm, inside diameter 0.42mm, wall thickness 0.04mm, as drawn, 99.95%

GF87686173

Platinum, foil, 30x30mm, thickness 0.2mm, as rolled, 99.95%

GF78892981

Platinum, wire reel, 0.05m, diameter 0.8mm, annealed, may be used as one component of a thermocouple, 99.99%

GF26290313

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