Re-dispersion of gold supported on a ‘mixed’ oxide support

Kevin Morgan, Robbie Burch, Muhammad Daous, Juan Jose Delgado, Alexandre Goguet, Christopher Hardacre, Lachezar A. Petrov, David W. Rooney

Research output: Contribution to journalArticle

2 Citations (Scopus)
177 Downloads (Pure)

Abstract

The ability to reactivate, stabilize and increase the lifetime of gold catalysts by dispersing large, inactive gold nanoparticles to smaller nanoparticles provides an opportunity to make gold catalysts more practical for industrial applications. Previously it has been demonstrated that mild treatment with iodomethane (CH3I) (J. Am. Chem. Soc., 2009, 131, 6973; Angew. Chem. Int. Ed., 2011, 50, 8912) was able to re-disperse gold on carbon and metal oxide supports. In the current work, we show that this technique can be applied to re-disperse gold on a ‘mixed’ metal oxide, namely a mechanical mixture of ceria, zirconia and titania. Characterization was conducted to gage the impact of the iodomethane (CH3I) treatment on a previously sintered catalyst.
Original languageEnglish
Pages (from-to)120-124
Number of pages5
JournalCatalysis Structure and Reactivity
Volume1
Issue number3
Early online date28 Apr 2015
DOIs
Publication statusPublished - Aug 2015

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