Identification of CO Adsorption Sites in Supported Pt Catalysts Using High-Energy-Resolution Fluorescence Detection X-ray Spectroscopy
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- 作者：Olga V. Safonova ; Moniek Tromp ; Jeroen A. van Bokhoven ; Frank M. F. de Groot ; John Evans ; Pieter Glatzel
- 刊名：Journal of Physical Chemistry B
- 出版年：2006
- 出版时间：August 24, 2006
- 年：2006
- 卷：110
- 期：33
- 页码：16162 - 16164
- 全文大小：85K
- 年卷期：v.110,no.33(August 24, 2006)
- ISSN：1520-5207
文摘
High-energy-resolution fluorescence detection (HERFD) X-ray spectroscopy is presented as a new tool forthe identification of the bonding sites of reactants in supported metal catalysts. The type of adsorption site ofCO on an alumina-supported platinum catalyst and the orbitals involved in the bonding are identified. BecauseX-ray absorption spectroscopy (XAS) is element-specific and can be used under high pressures andtemperatures, in situ HERFD XAS can be applied to a swathe of catalytic systems, including alloys.