A new modified electrode based on electrochemical oxidation of 1-amino-5,6,7,8-tetrahydronaphthalene in acetonitrile

Electrooxidative polymerization of the 1-amino-5,6,7,8-tetrahydronaphthalene (ATHN) monomer on a glassy carbon (GC) electrode was carried out in an acetonitrile solution containing LiClO 4 using consecutive multisweep cyclic voltammetry and controlled potential electrolysis techniques. The factors t...

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Bibliographic Details
Published in:Electrochimica acta 2010-02, Vol.55 (5), p.1509-1518
Main Authors: Yousef, U.S., Ragab, A.Z.-E., Abdel-Azzem, M.
Format: Article
Language:English
Subjects:
Acetonitrile
Chemistry
Controlled potential electrolysis
Cycles
Electrochemical oxidation
Electrochemistry
Electrodes
Electrodes: preparations and properties
Electropolymerization
Exact sciences and technology
General and physical chemistry
Glassy carbon
Hydroquinone
Modified electrode
Monomers
Other electrodes
Voltammetry
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Summary:Electrooxidative polymerization of the 1-amino-5,6,7,8-tetrahydronaphthalene (ATHN) monomer on a glassy carbon (GC) electrode was carried out in an acetonitrile solution containing LiClO 4 using consecutive multisweep cyclic voltammetry and controlled potential electrolysis techniques. The factors that affected the film formation, such as monomer concentration, number of sweeping cycles, sweep rate and limits of potential cycling were investigated in detail. The obtained modified electrode was active only in acidic solutions, and its activity was found to be pH dependent. The effects of pH and temperature on the obtained modified electrode were studied. The obtained modified electrode has been found to improve the electrochemical reversibility and decrease the overpotential of hydroquinone.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2009.09.041