Electrodeposition of tungsten and related voltammetric study in a basic ZnCl2-NaCl (40-60 mol %) melt

Authors
Masuda, M Takenishi, H Katagiri, A
Citation
M. Masuda et al., Electrodeposition of tungsten and related voltammetric study in a basic ZnCl2-NaCl (40-60 mol %) melt, J ELCHEM SO, 148(1), 2001, pp. C59-C64
Citations number
31
Categorie Soggetti
Physical Chemistry/Chemical Physics","Material Science & Engineering
Journal title
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
ISSN journal
00134651 → ACNP
Volume
148
Issue
1
Year of publication
2001
Pages
C59 - C64
Database
ISI
SICI code
0013-4651(200101)148:1<C59:EOTARV>2.0.ZU;2-X
Abstract
The electrodeposition of tungsten and Voltammetric experiments were perform ed in basic ZnCl2-NaCl (40-60 mol %) melts containing various tungsten comp ounds at 450 degreesC. In constant potential electrolysis, metallic tungste n was obtained from WO3, K2WO4, WCl4, and K2WCl6, but not from K3W2Cl9 and WCl2. Similar to the case of acidic melt (60-40 mol %), the oxide ion or an oxochlorotungsten species may participate in the electrodeposition process . The presence of molecular oxygen does not interfere with the process. (C) 2000 The Electrochemical Society. All rights reserved.