Investigation of vanadium–sodium silicate glasses using XANES spectroscopy

Investigation of vanadium–sodium silicate glasses using XANES spectroscopy. JOURNAL OF PETROLEUM GEOLOGY 30 (2) 2006.

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Abstract

Abstract 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. © 2006 Elsevier B.V. All rights reserved. Keywords: XANES; Vanadium–sodium silicate glasses; V L2,3 edges; O K edge

Item Type: Article
Subjects: Physics
Divisions: College Of Sciences > Physics Dept
Depositing User: AbdulRahman
Date Deposited: 19 Mar 2008 11:05
Last Modified: 01 Nov 2019 16:24
URI: http://eprints.kfupm.edu.sa/id/eprint/518