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Solvent-free oxidation of primary carbon-hydrogen bonds in toluene using Au-Pd alloy nanoparticles

Kesavan, Lokesh, Tiruvalam, Ramchandra, Ab Rahim, Mohd Hasbi, Saiman, Mohd Izham, Enache, Dan Ion, Jenkins, Robert Leyshon, Dimitratos, Nikolaos ORCID:, Lopez-Sanchez, Jose Antonio, Taylor, Stuart H. ORCID:, Knight, David William, Kiely, Christopher John ORCID: and Hutchings, Graham John ORCID: 2011. Solvent-free oxidation of primary carbon-hydrogen bonds in toluene using Au-Pd alloy nanoparticles. Science 331 (6014) , pp. 195-199. 10.1126/science.1198458

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Selective oxidation of primary carbon-hydrogen bonds with oxygen is of crucial importance for the sustainable exploitation of available feedstocks. To date, heterogeneous catalysts have either shown low activity and/or selectivity or have required activated oxygen donors. We report here that supported gold-palladium (Au-Pd) nanoparticles on carbon or TiO2 are active for the oxidation of the primary carbon-hydrogen bonds in toluene and related molecules, giving high selectivities to benzyl benzoate under mild solvent-free conditions. Differences between the catalytic activity of the Au-Pd nanoparticles on carbon and TiO2 supports are rationalized in terms of the particle/support wetting behavior and the availability of exposed corner/edge sites.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Cardiff Catalysis Institute (CCI)
Subjects: Q Science > QD Chemistry
Publisher: American Association for the Advancement of Science
ISSN: 1095-9203
Last Modified: 06 May 2023 01:32

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