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Title: Structural investigation of phosphate - bismuth glasses with vanadium

The xV{sub 2}O{sub 5}(1−dx)[0.5P{sub 2}O{sub 5}⋅0.5Bi{sub 2}O{sub 3}] glass system with 0 ≤ x ≤ 50 mol% is investigated by IR and Raman spectroscopy. Both P{sub 2}O{sub 5} and Bi{sub 2}O{sub 3} oxides are known as network formers, but Bi{sub 2}O{sub 3} is an unconventional one. At low content of vanadium oxide (x ≤ 5 mol%), both IR and Raman spectra are dominated by vibration bands characteristics to structural groups of phosphate and bismuthate lattices. Due to the network modifier role, vanadium oxide acts mainly on the Bi{sub 2}O{sub 3} network allowing the phosphate groups to impose their characteristics absorption bands in spectra. These bands are strongly reduced for x ≥ 20 mol% due to the phosphate network depolymerization and the appearance of new vibrations characteristic to P-O-V, Bi-O-V and V-O-V groups showing the network former role of V{sub 2}O{sub 5}.
Authors:
 [1] ;  [2] ; ;  [3]
  1. Babes-Bolyai University, Faculty of Physics, Kogalniceanu 1, 400084 Cluj-Napoca (Romania)
  2. Iuliu Hatieganu University of Medicine and Pharmacy, Biophysics Department, Faculty of Pharmacy, RO-400023 Cluj-Napoca (Romania)
  3. National Institute for Research and Development of Isotopic and Molecular Technologies, RO-400293 Cluj-Napoca (Romania)
Publication Date:
OSTI Identifier:
22257171
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1565; Journal Issue: 1; Conference: PIM 2013: International conference on processes in isotopes and molecules, Cluj Napoca (Romania), 25-27 Sep 2013; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; ABSORPTION; BISMUTH; BISMUTH OXIDES; DEPOLYMERIZATION; GLASS; PHOSPHATES; PHOSPHORUS OXIDES; RAMAN SPECTRA; RAMAN SPECTROSCOPY; VANADATES; VANADIUM; VANADIUM OXIDES