Activation of Oxygen on Gold/Alumina Catalysts: In Situ High-Energy-Resolution Fluorescence and Time-Resolved X-ray Spectroscopy†
Jeroen A. van Bokhoven Prof. Dr.
Institute for Chemical and Bioengineering, ETH Zürich, 8093 Zürich, Switzerland, Fax: (+41) 43-362-1162
Search for more papers by this authorCatherine Louis Dr.
Laboratoire de Réactivité de Surface, UMR 7609 CNRS, Université Pierre et Marie Curie, 4 place Jussieu, 75252, Paris, Cedex 05, France
Search for more papers by this authorJeffrey T. Miller Dr.
BP Research Center, 150 W. Warrenville Rd., Naperville, IL 60565-8406, USA
Search for more papers by this authorMoniek Tromp Dr.
University of Southampton, School of Chemistry, Southampton, SO17 1BJ, UK
Search for more papers by this authorOlga V. Safonova Dr.
European Synchrotron Radiation Facility (ESRF), BP22, 6 rue Jules Horowitz, 38043 Grenoble, France
Search for more papers by this authorPieter Glatzel Dr.
European Synchrotron Radiation Facility (ESRF), BP22, 6 rue Jules Horowitz, 38043 Grenoble, France
Search for more papers by this authorJeroen A. van Bokhoven Prof. Dr.
Institute for Chemical and Bioengineering, ETH Zürich, 8093 Zürich, Switzerland, Fax: (+41) 43-362-1162
Search for more papers by this authorCatherine Louis Dr.
Laboratoire de Réactivité de Surface, UMR 7609 CNRS, Université Pierre et Marie Curie, 4 place Jussieu, 75252, Paris, Cedex 05, France
Search for more papers by this authorJeffrey T. Miller Dr.
BP Research Center, 150 W. Warrenville Rd., Naperville, IL 60565-8406, USA
Search for more papers by this authorMoniek Tromp Dr.
University of Southampton, School of Chemistry, Southampton, SO17 1BJ, UK
Search for more papers by this authorOlga V. Safonova Dr.
European Synchrotron Radiation Facility (ESRF), BP22, 6 rue Jules Horowitz, 38043 Grenoble, France
Search for more papers by this authorPieter Glatzel Dr.
European Synchrotron Radiation Facility (ESRF), BP22, 6 rue Jules Horowitz, 38043 Grenoble, France
Search for more papers by this authorWe thank Dr. I. N. Remediakis and Prof. Dr. J. K. Nørskov for providing the coordinates of the calculated gold structures, Dr. F. Krumeich for taking the EM images, Dr. L. Delannoy for making the sample, the SNF (J.A.v.B.), the EPSRC (M.T.), and the ESRF for provision of facilities at ID26 and ID24 (mass spectrometer).
Graphical Abstract
Gold is not so inert after all! X-ray absorption spectroscopy was used to probe the activation of O2 and its reaction with CO over an Au/Al2O3 catalyst. The catalytic activity of small gold particles in the oxidation of CO arises from their ability to transfer charge to oxygen (see picture).
Supporting Information
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