Investigation of vanadium-sodium silicate glasses using XANES spectroscopy

被引：6

作者：

Faiz, M. ^{[1
]}

Mekki, A.

Mun, B. S.

Hussain, Z.

机构：

[1] KFUPM, Dept Phys, Surface Sci Lab, Dhahran, Saudi Arabia

[2] Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA

来源：

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 2007年 / 154卷 / 03期

关键词：

XANES; vanadium-sodium silicate glasses; VL2,3 edges; OK edge;

D O I：

10.1016/j.elspec.2006.11.006

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

X-ray absorption near edge structure spectroscopy has been used to investigate the electronic and atomic structure of (V2O5)(x)(Na2O)(0.30)(SiO2)(0.70-x)(x < 0.1) glasses obtained by melt-quench technique. The results show no sign of metallic clustering of V atoms, but mixed oxidation states (+4 and +5) of V and strong V3d-O2p hybridization in the glasses. Detailed analysis has revealed that the glass samples contain about 15% V4+ and 85% V5+ and the ligand-field splitting is about 1.6 ev (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：60 / 62

页数：3

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