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

267821

Sigma-Aldrich

Platinum, wire, diam. 0.127 mm, 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

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

349348

Sigma-Aldrich

Platinum, foil, thickness 0.127 mm, 99.99% 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

444685

Sigma-Aldrich

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

349321

Sigma-Aldrich

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

349380

Sigma-Aldrich

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

GF68611237

Platinum, foil, 0.2m coil, thickness 0.029mm, coil width .34mm, annealed, 99.99%

GF72782231

Platinum, foil, 50x50mm, thickness 0.1mm, as rolled, 99.99+%

771937

Sigma-Aldrich

Platinum, nanopowder, 200 nm particle size (SEM), 99.9% (metals basis)

GF83202083

Platinum, foil, 0.2m coil, thickness 0.045mm, coil width .75mm, as rolled, 99.95%

GF83172269

Platinum, foil, 0.05m coil, thickness 0.025mm, coil width .4mm, as rolled, 99.95%

GF98759200

Platinum, foil, not light tested, 100x100mm, thickness 0.0125mm, as rolled, 99.95%

GF82683894

Platinum, wire reel, 0.1m, diameter 0.25mm, as drawn, 99.998%

GF93413493

Platinum, wire reel, 0.1m, diameter 0.15mm, annealed, may be used as one component of a thermocouple, 99.99%

GF74454824

Platinum, wire reel, 0.1m, diameter 0.006mm, wollaston, 99.9%

GF72566657

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

GF87506208

Platinum, foil, 0.2m coil, thickness 0.025mm, coil width 1.6mm, as rolled, 99.95%

GF77270407

Platinum, foil, not light tested, 50x50mm, thickness 0.003mm, as rolled, 99.95%

GF68710484

Platinum, insulated wire, 0.5m, conductor diameter 0.025mm, insulation thickness 0.001mm, PTFE (polytetrafluoroethylene) insulation, 99.999%

GF96238570

Platinum, foil, not light tested, 50x50mm, thickness 0.01mm, as rolled, 99.95%

GF91869227

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

GF78892981

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

GF71546429

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

GF87686173

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