VANADIUM SITE STRUCTURE IN V2O5 GEL BY POLARIZED EXAFS AND XANES

被引：14

作者：

Stizza, S. ^{[1
,4
]}

Benfatto, M. ^{[1
,3
,4
]}

Bianconi, A. ^{[2
]}

Garcia, J. ^{[2
,3
]}

Mancini, G. ^{[1
,4
]}

Natoli, C. R. ^{[3
]}

机构：

[1] Univ Camerino, Dipartimento Matemat & Fis, I-62032 Camerino, Italy

[2] Univ Rome La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[3] Lab Nazl Frascati, I-00044 Frascati, Italy

[4] Univ Zaragoza, Dept Thermol, Zaragoza, Spain

来源：

JOURNAL DE PHYSIQUE | 1986年 / 47卷 / C-8期

关键词：

D O I：

10.1051/jphyscol:19868130

中图分类号：

学科分类号：

摘要：

The local structure at the V site is investigated by polarized X-ray absorption spectroscopy in vanadium pentoxide gel V(2)O(5)1.6H(2)O. Polarized absorption spectra allows to separate experimentally the contribution of neighbour atoms in different directions. EXAFS analysis were performed using spherical wave aproximation (SWA). When polarization vector E is in the direction of the axis of the pyramid, EXAFS analysis gives only the short double bond lenght at 1.58 angstrom, but XANES indicates the aditionalpresence of the oxygen at 2.7 angstrom.

引用

页码：168 / 173

页数：6

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