Selective catalytic oxidation using supported gold-platinum and palladium-platinum nanoalloys prepared by sol-immobilisation

Virginie Peneau, Qian He, Gregory Shaw, Simon A. Kondrat, Thomas E. Davies, Peter Miedziak, Michael Forde, Nikolaos Dimitratos, Christopher J. Kiely, Graham J. Hutchings*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

Supported nano-alloys have been prepared using the sol-immobilisation method for two bimetallic combinations, namely gold-platinum and palladium-platinum, using activated carbon and titania as supports. Some of the materials were prepared using a method where both metals are simultaneously reduced, thereby leading to homogeneous alloys being formed. In addition, sequential reduction of the metal combinations has also been investigated to facilitate the formation of core-shell structures. The materials have been characterized using X-ray photoelectron spectroscopy and aberration-corrected scanning transmission electron microscopy. The supported nanoparticles have been tested for a two selective oxidation reactions, namely the oxidation of toluene and benzyl alcohol using tertiary butyl hydroperoxide at 80 °C, in order to elucidate any potential structure-activity relationships.

Original languageEnglish
Pages (from-to)10636-10644
Number of pages9
JournalPhysical Chemistry Chemical Physics
Volume15
Issue number26
DOIs
Publication statusPublished - 14 Jul 2013
Externally publishedYes

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