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Imidazolium ionic liquid–water mixtures: The formation of a new species that inhibits the electrocatalytical charge transfer processes on a platinum surface

Paper ID Volume ID Publish Year Pages File Format Full-Text
52085 46865 2008 5 PDF Available
Title
Imidazolium ionic liquid–water mixtures: The formation of a new species that inhibits the electrocatalytical charge transfer processes on a platinum surface
Abstract

Cyclic voltammetry measurements using a platinum electrode were performed to study the effect of water when added to the imidazolium room-temperature ionic liquids (RTILs) 1 [C7O3MIm][Mes] and 2 [C3O1MIm][Mes]. The addition of a very small amount of water to RTIL 1 resulted in diminished cathodic current values. An even more pronounced effect was observed with RTIL 2 and all charge transfer processes were extremely reduced. This inhibition of the charge transfer processes suggests the formation of new species, due to a reaction between water and the RTILs, that adsorbs on the electrode surface.

Keywords
Platinum surface; Imidazolium room-temperature ionic liquid; Water; Cyclic voltammetry; Catalyst inhibition
First Page Preview
Imidazolium ionic liquid–water mixtures: The formation of a new species that inhibits the electrocatalytical charge transfer processes on a platinum surface
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 6, 31 March 2008, Pages 971–975
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis