High energy resolution fluorescence detection x-ray absorption spectroscopy: Detection of adsorption sites in supported metal catalysts
Publication date
2007
Authors
Tromp, Moniek
van Bokhoven, Jeroen A.
Safonova, Olga V.
de Groot, F. M. F.
Evans, John
Glatzel, Pieter
Editors
Hedman, B
Painetta, P
Advisors
Supervisors
DOI
Document Type
Part of book
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Abstract
High energy resolution fluorescence detection (HERFD) X-ray adsorption spectroscopy (Y-AS) 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-Al2O3 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.
Keywords
high energy resolution, HERFD XAS, XANES, in situ, CO adsorption, PARTICLES, HYDROGEN, Taverne
Citation
Tromp, M, van Bokhoven, J A, Safonova, O V, De Groot, F M F, Evans, J & Glatzel, P 2007, High energy resolution fluorescence detection x-ray absorption spectroscopy : Detection of adsorption sites in supported metal catalysts. in B Hedman & P Painetta (eds), X-Ray Absorption Fine Structure-XAFS13. AIP CONFERENCE PROCEEDINGS, vol. 882, American Institute of Physics, MELVILLE, pp. 651-653, 13th International Conference on X-Ray Absorption Fine Structure (XAFS13), Canada, 9/07/06., conference