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Dr. Vladimir I. Sobolev, Olga A. Simakova and Prof. Konstantin Y. Koltunov Generation of Reactive Oxygen Species on Au/TiO2 after Treatment with Hydrogen: Testing the Link to Ethanol Low-Temperature Oxidation ChemCatChem 3

Article first published online: 2 AUG 2011 | DOI: 10.1002/cctc.201100133

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Reduction for oxidation: After preliminary treatment with molecular hydrogen, Au/TiO2 and Au/Al2O3 catalysts were able to induce O2 isotope exchange at mild conditions (−15 °C), which is believed to proceed through highly reactive surface oxygen species. However, the relative intensity of such an exchange is markedly different (see picture) and is in accordance with the diverse profiles of ethanol oxidation over gold nanoparticles supported on TiO2, Al2O3, and SiO2 matrixes.

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