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High energy resolution fluorescence detection x-ray absorption spectroscopy: detection of absorption sites in supported metal catalysts

By Moniek Tromp, Jeroen A. van Bokhoven, Olga V. Safonova, Frank M.F. de Groot, John Evans and Pieter Glatzel

Abstract

High energy resolution fluorescence detection (HERFD) X-ray adsorption spectroscopy (XAS) is demonstrated as a new tool to identify the geometry of metal adsorption sites and the orbitals involved in bonding. The type of CO adsorption site on a nanoparticular Pt-Al203 catalyst is determined. The orbitals involved in the Pt - CO bonding are identified using theoretical FEFF8.0 calculations. In situ application of HERFD XAS is applicable to a large number of catalytic systems and will provide fundamental insights in structure - performance relationships

Topics: QD, QC
Year: 2007
OAI identifier: oai:eprints.soton.ac.uk:47104
Provided by: e-Prints Soton
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