Switching-off toluene formation in the solvent-free oxidation of benzyl alcohol using supported trimetallic Au-Pd-Pt nanoparticles

Qian He, Peter J. Miedziak, Lokesh Kesavan, Nikolaos Dimitratos, Meenakshisundaram Sankar, Jose Antonio Lopez-Sanchez, Michael M. Forde, Jennifer K. Edwards, Stuart H. Taylor, Christopher J. Kiely*, Graham J. Hutchings, David Knight

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

34 Citations (Scopus)

Abstract

Trimetallic Au-Pd-Pt nanoparticles have been supported on activated carbon by the sol-immobilisation method. They are found to be highly active and selective catalysts for the solvent-free aerobic oxidation of benzyl alcohol. The addition of Pt promotes the selectivity to the desired product benzaldehyde at the expense of toluene formation. Detailed aberration corrected STEM-XEDS analysis confirmed that the supported particles are indeed Au-Pd-Pt ternary alloys, but also identified composition fluctuations from particle-to-particle which vary systematically with nanoparticle size.

Original languageEnglish
Pages (from-to)365-378
Number of pages14
JournalFaraday Discussions
Volume162
DOIs
Publication statusPublished - 11 Jul 2013
Externally publishedYes

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