Gold Nanoparticles Supported on Passivated Silica: Access to an Efficient Aerobic Epoxidation Catalyst and the Intrinsic Oxidation Activity of Gold

Gajan, DavidGuillois, KevinDelichere, PierreBasset, Jean-MarieCandy, Jean-PierreCaps, ValerieCoperet, ChristopheLesage, AnneEmsley, Lyndon2015-01-082015-01-082015-01-08200910.1021/ja903730qhttps://infoscience.epfl.ch/handle/20.500.14299/110032WOS:000271271800034Well-defined and perfectly dispersed [(square SiO)Au(1)] surface species supported on silica have been obtained via surface organometallic chemistry and transformed upon mild reduction (H(2), 300 degrees C) into small (1.8 +/- 0.6 nm) Au particles supported on silica passivated with SiMe(3) functionalities. improved performance in liquid-phase aerobic epoxidation has been achieved, and the intrinsic activity of gold in oxidation is revealed.Gold Nanoparticles Supported on Passivated Silica: Access to an Efficient Aerobic Epoxidation Catalyst and the Intrinsic Oxidation Activity of Goldtext::journal::journal article::research article