期刊
SCIENCE
卷 331, 期 6014, 页码 195-199出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1198458
关键词
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资金
- Dow Chemical Company
- EPSRC [EP/F068379/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/F068379/1] Funding Source: researchfish
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.
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