Electroreduction of methyl viologen in methanol and silicate thin films prepared by the sol–gel method

Bulk methanol solutions of methyl viologen (paraquat) can be reversibly reduced to its blue cation radical on transparent ITO electrodes. The intensity of the coloration is directly proportional to voltage applied to the cell. Such effect does not occur for aqueous paraquat solutions. Reversible blu...

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Bibliographic Details
Published inOptical materials Vol. 22; no. 3; pp. 221 - 225
Main Authors Maruszewski, Krzysztof, Hreniak, Agnieszka, Czyżewski, Jan, Stręk, Wiesław
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.05.2003
Elsevier Science
Subjects
Chemistry
Electrochemistry
Electroreduction
Exact sciences and technology
General and physical chemistry
ITO electrodes
Kinetics and mechanism of reactions
Methyl viologen
Sol–gel method
ITO electrodes
Electroreduction
Sol–gel method
Methyl viologen
Organic cation
Indium tin oxide electrode
Nitrogen heterocycle
Absorption spectrum
Chemical reduction
Organic solvent
Pyridinium compounds
Sol gel process
Visible spectrum
Electrochemical reaction
Organic compounds
Modified material
Methanol
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Summary:Bulk methanol solutions of methyl viologen (paraquat) can be reversibly reduced to its blue cation radical on transparent ITO electrodes. The intensity of the coloration is directly proportional to voltage applied to the cell. Such effect does not occur for aqueous paraquat solutions. Reversible blue coloration can also be obtained for a MV 2+-doped silicate thin film obtained by the sol-technique and sandwiched between two ITO plates.
ISSN:0925-3467
1873-1252
DOI:10.1016/S0925-3467(02)00268-9