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Catalytic Properties of Layered Gold–Palladium Colloids

✍ Scribed by Günter Schmid; Heike West; Jan-Olle Malm; Jan-Olv Bovin; Carl Grenthe

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
525 KB
Volume
2
Category
Article
ISSN
0947-6539

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✦ Synopsis

Layered bimetallic gold-palladium colloids in the size range of 20-56 nm have been synthesized by the seedgrowth method: gold seeds were covered by palladium layers of various thickness and vice versa. The outer metal was coordinated by trisulfonated triphenylphosphine and sodium sulfanilate ligands to stabilize the bimetallic particles to such an extent that they could be isolated in the solid state. Owing to the hydrophilic lig-and shell, redispersion in water was possible in any concentration. High-resolution transmission electron microscopy and energy-dispersive X-ray analysis was used to characterize the colloids. Stabilized and nonstabilized gold-palladium Keywords catalysiscolloids * gold-palladium colloids * HRTEM * hydrogenations lnstitut fur Anorganische Chemie.

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