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

被引：0

作者：

Tromp, Moniek ^{[1
]}

van Bokhoven, Jeroen A. ^{[2
]}

Safonova, Olga V. ^{[3
]}

De Groot, Frank M. F. ^{[4
]}

Evans, John ^{[1
,5
]}

Glatzel, Pieter ^{[3
]}

机构：

[1] Univ Southampton, Sch Chem, Southampton SO17 1BJ, Hants, England

[2] ETH, Inst Chem & Bioengn, Zurich, Switzerland

[3] ESRF, Grenoble, France

[4] Univ Utrecht, NL-3508 TC Utrecht, Netherlands

[5] Diamond Light Source, Didcot, Oxon, England

来源：

X-RAY ABSORPTION FINE STRUCTURE-XAFS13 | 2007年 / 882卷

基金：

瑞士国家科学基金会;

关键词：

high energy resolution; HERFD XAS; XANES; in situ; CO adsorption;

D O I：

暂无

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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.

引用

页码：651 / +

页数：2

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