Identification of CO adsorption sites in supported Pt catalysts using high-energy-resolution fluorescence detection X-ray spectroscopy
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Publication date
2006-08-24
Authors
Safonova, Olga V.
Tromp, Moniek
van Bokhoven, Jeroen A.
De Groot, F.
Evans, John
Glatzel, Pieter
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Document Type
Letter
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Abstract
High-energy-resolution fluorescence detection (HERFD) X-ray spectroscopy is presented as a new tool for the identification of the bonding sites of reactants in supported metal catalysts. The type of adsorption site of CO on an alumina-supported platinum catalyst and the orbitals involved in the bonding are identified. Because X-ray absorption spectroscopy (XAS) is element-specific and can be used under high pressures and temperatures, in situ HERFD XAS can be applied to a swathe of catalytic systems, including alloys.
Keywords
PARTICLES, PLATINUM, SURFACE, TRANSITION, SCATTERING, HYDROGEN, PT(111), OXYGEN, PHASE, STM, Taverne
Citation
Safonova, O V, Tromp, M, van Bokhoven, J A, de Groot, F M F, Evans, J & Glatzel, P 2006, 'Identification of CO adsorption sites in supported Pt catalysts using high-energy-resolution fluorescence detection X-ray spectroscopy', Journal of Physical Chemistry B, vol. 110, no. 33, pp. 16162-16164. https://doi.org/10.1021/jp063416t