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Electrochemical Characterization of Self‐Assembled Monolayer of a Novel Manganese Tetrabenzylthio‐Substituted Phthalocyanine and Its Use in Nitrite Oxidation
Authors:Fungisai Matemadombo  Sophie Griveau  Fethi Bedioui  Tebello Nyokong
Institution:1. Rhodes University, Department of Chemistry, PO Box 94, 6140 Grahamstown, South Africa;2. Unité Pharmacologie Chimique et Génétique, CNRS 8151, INSERM 640, Ecole Nationale Supérieure de Chimie de Paris, Paris Descartes. ENSCP, 11 rue Pierre et Marie Curie, 75231?Paris cedex 05, France
Abstract:Manganese phthalocyanine MnPc(SPh)4 has been synthesized and used to form self assembled monolayers on gold electrodes. The well packed SAM monolayer was characterized by analyzing the blocking of a number of Faradic processes by cyclic voltammetry, evaluating the electrical characteristics of the modified electrode by electrochemical impedance and imaging the modified surface by electrochemical scanning microscopy. Finally, MnPc(SPh)4‐SAM modified electrode displayed an electrocatalytic behavior toward the oxidation of nitrite.
Keywords:Manganese phthalocyanine  Cyclic voltammetry  Self‐assembled monolayer  Impedance spectroscopy  Nitrite oxidation  Electrochemical scanning microscopy
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