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

349402

Sigma-Aldrich

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

349380

Sigma-Aldrich

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

349348

Sigma-Aldrich

Platinum, foil, thickness 0.127 mm, 99.99% 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

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%

GF95233710

Platinum, wire reel, 2m, diameter 0.25mm, hard, 99.95%

GF20699994

Platinum, foil, 4mm disks, thickness 0.004mm, as rolled, 99.95%

GF93729134

Platinum, wire reel, 5m, diameter 0.02mm, as drawn, 99.9%

GF76114313

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

GF91208909

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

GF02251730

Platinum, rod, 200mm, diameter 1.0mm, 99.95%

GF39552172

Platinum, insulated wire, 5m, conductor diameter 0.025mm, insulation thickness 0.005mm, polyester insulation, 99.99%

GF72819715

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

GF47974056

Platinum, tube, 100mm, outside diameter 0.5mm, inside diameter 0.42mm, wall thickness 0.04mm, as drawn, 99.95%

GF61798843

Platinum, rod, 10mm, diameter 2.0mm, 99.95%

GF49812510

Platinum, tube, 100mm, outside diameter 3.0mm, inside diameter 2.8mm, wall thickness 0.1mm, as drawn, 99.95%

GF71546429

Platinum, rod, 25mm, diameter 1.0mm, 99.95%

GF87686173

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

GF58198517

Platinum, wire reel, 0.05m, diameter 0.6mm, as drawn, 99.99+%

GF51572572

Platinum, insulated wire, 5m, conductor diameter 0.05mm, insulation thickness 0.009mm, PTFE (polytetrafluoroethylene) insulation, 99.99%

GF09436619

Platinum, tube, 200mm, outside diameter 0.95mm, inside diameter 0.60mm, wall thickness 0.175mm, as drawn, 99.95%