Investigation of electrochemical behavior of Calmagite at a glassy carbon electrode
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Tarih
2014
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Sci Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The voltammetric behavior of 1-(1-hydroxy-4-methyl-2-phenylazo)-2-naphthol-4-sulfonic acid (Calmagite) has been studied by square-wave voltammetry (SWV), differential pulse voltammetry (DPV), cyclic voltammetry (CV) and direct current voltammetry (DCV) in different electrolyte media. The voltammograms recorded at a glassy carbon electrode (GCE) exhibit one cathodic peak, corresponding to the two-step four-electron reduction process of azo compound. The observed shift of the compound reduction peaks to more negative potentials with increasing pH indicates that hydrogen ions are involved in the electrode reaction. The effect of scan rate and pH on the reduction peaks has been studied. From the voltammetric data, the electrochemical reaction mechanism of the azo compound has been suggested. (C) 2014 Elsevier Ltd. All rights reserved.
Açıklama
Anahtar Kelimeler
Glassy carbon electrode, Azo dye, Voltammetry, Reaction mechanism, Calmagite, Electroreduction
Kaynak
Dyes and Pigments
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
106
