Studies of the accelerating effect of thiourea on the reduction of Zn-II in mixed water-organic solvents at the mercury electrode

Authors
Marczewska, B
Citation
B. Marczewska, Studies of the accelerating effect of thiourea on the reduction of Zn-II in mixed water-organic solvents at the mercury electrode, ADSORPT S T, 19(6), 2001, pp. 435-440
Citations number
13
Categorie Soggetti
Chemistry
Journal title
ADSORPTION SCIENCE & TECHNOLOGY
ISSN journal
02636174 → ACNP
Volume
19
Issue
6
Year of publication
2001
Pages
435 - 440
Database
ISI
SICI code
0263-6174(2001)19:6<435:SOTAEO>2.0.ZU;2-A
Abstract
The accelerating influence of thiourea on the Zn-II/Zn(Hg) reduction proces s was investigated in the following mixed solutions: water-methanol (MeOH); water-ethanol (EtOH); water-dimethyl sulphoxide (DMSO); water-dimethylform amide (DMF). It was suggested that the dominant role in acceleration of the electrode process is played by the composition of the activated complex, w hich is presumably composed of solvent molecules and thiourea molecules ads orbed on to the electrode. A mechanism was proposed for the process occurri ng.