XANES study of rhenium oxide compounds at the L1 and L3 absorption edges

被引：46

作者：

Tougerti, Asma ^{[1
,2
,3
]}

Cristol, Sylvain ^{[3
]}

Berrier, Elise ^{[3
]}

Briois, Valerie ^{[4
]}

La Fontaine, Camille ^{[4
]}

Villain, Francoise ^{[4
]}

Joly, Yves ^{[1
,2
]}

机构：

[1] CNRS, Inst Neel, F-38042 Grenoble 9, France

[2] Univ Grenoble 1, F-38042 Grenoble 9, France

[3] Univ Lille 1, UMR CNRS 8181, Unite Catalyse & Chim Solide, F-59650 Villeneuve Dascq, France

[4] LOrme Merisiers St Aubin, Synchrotron Soleil, F-91192 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW B | 2012年 / 85卷 / 12期

关键词：

CRYSTAL-STRUCTURE; CATALYSTS; RE2O7; REO3;

D O I：

10.1103/PhysRevB.85.125136

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the study of a set of rhenium oxide reference compounds (NH(4)eO(4), NaReO4, ReO3, ReO2, and Re2O7) using x-ray-absorption near-edge structure. The parallel use of Re L-1 and L-3 absorption edges permits a concomitant understanding of both the oxidation state and the local symmetry for these compounds. Experiments are compared with ab initio simulations. A good agreement is reached in most cases. The choice of the cluster size and the calculation method (full potential or not), which are mandatory ingredients allowing a satisfactory reproduction of the recorded spectra, is discussed in detail. In the meantime, these parameters give important pieces of information on the studied materials.

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页数：8

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