Heterogeneous electron transfer at Au/SAM junctions in a room-temperature ionic liquid under pressure

Proven electrochemical approaches were applied to study heterogeneous electron transfer (ET) between selected redox couples and gold electrodes modified with alkanethiol self-assembled monolayers (SAMs), using the room-temperature ionic liquid (RTIL) [bmim][NTf2] as reaction medium; ferrocene as fre...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2008-05 (18), p.2112-2114
Main Authors: Dolidze, Tina D, Khoshtariya, Dimitri E, Illner, Peter, van Eldik, Rudi
Format: Article
Language:English
Subjects:
Electrochemistry
Electrodes
Electrons
Gold - chemistry
Ionic Liquids - chemistry
Kinetics
Membranes, Artificial
Oxidation-Reduction
Pressure
Sulfhydryl Compounds - chemistry
Surface Properties
Temperature
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Summary:Proven electrochemical approaches were applied to study heterogeneous electron transfer (ET) between selected redox couples and gold electrodes modified with alkanethiol self-assembled monolayers (SAMs), using the room-temperature ionic liquid (RTIL) [bmim][NTf2] as reaction medium; ferrocene as freely diffusing redox probe in the RTIL was tested for ET through both thin (butanethiol) and thick (dodecanethiol) assemblages at pressures up to 150 MPa; well behaved kinetic patterns and reproducibility of data were demonstrated for ET within the unique Au/SAM/RTIL arrays.
ISSN:1359-7345
1364-548X
DOI:10.1039/b719787j