Fully dispersed Pt entities on nano-Au dramatically enhance the activity of gold for chemoselective hydrogenation catalysisElectronic supplementary information (ESI) available: Preparation procedures, experimental details for catalytic testing, TEM images and detailed catalytic data. See DOI: 10.1039/c0cc03790g

Adding a small amount of fully dispersed Pt entities onto the Au surface in Au/SiO2catalyst is found to be an efficient approach to improve the catalytic activity of Au (up to 70-fold) for the hydrogenation of α,β-unsaturated carbonyl compounds, without alternating its selectivity towards CO or CC bond hydrogenation. [ABSTRACT FROM AUTHOR]