Cyclic Voltammetric Behavior of Iron Electrode in Sodium Hydroxide Solutions
Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, P.O. Box 118, Makkah Al Mukaramha (Saudia Arabia).
DOI : http://dx.doi.org/10.13005/msri/060201
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The electrochemical behaviour of iron electrode in different concentrations and sweep rate of NaOH solution were studied using cyclic voltammograms . Four anodic peaks (A1-A4) were observed in the anodic scan of cyclic voltammograms where as two cathodic peaks (C1 and C2) were observed in the cathodic scan of cyclic voltammograms. The four anodic peaks due to the formation Fe(OH)ads peak (A1), Fe(OH)2, peak (A2), Fe2O3(peak A3) and formation of more stable Fe(III) species (peak A4) and the cathodic scan due to the reduction of species formed on the anodic scan.
KEYWORDS:Iron electrode; NaOH; Cyclic voltammograms; Electrochemistry
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Accepted on: 15 May 2009
