Electroreduction of chlorine gas at platinum electrodes in several room temperature ionic liquids: Evidence of strong adsorption on the electrode surface revealed by unusual voltammetry in which currents decrease with increasing voltage scan rates
Journal
Journal of Physical Chemistry C
Journal Volume
112
Journal Issue
49
Start Page
19477
End Page
19483
ISSN
19327455
Date Issued
2008
Author(s)
Huang, Xing-Jiu
Silvester, Debbie S.
Streeter, Ian
Hardacre, Christopher
Compton, Richard G.
Abstract
Voltammetry is reported for chlorine, Cl2, dissolved in various room temperature ionic liquids using platinum microdisk electrodes. A single reductive voltammetric wave is seen and attributed to the two-electron reduction of chlorine to chloride. Studies of the effect of voltage scan rate reveal uniquely unusual behavior in which the magnitude of the currents decrease with increasing scan rates. A model for this is proposed and shown to indicate the presence of strongly adsorbed species in the electrode reaction mechanism, most likely chlorine atoms, Cl·(ads). © 2008 American Chemical Society.
SDGs
Type
journal article