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Electrochemical Study on Corrosion Inhibition of Copper in Hydrochloric Acid Medium and the Rotating Ring-Disc Voltammetry for Studying the Dissolution
Joint Authors
Source
International Journal of Electrochemistry
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-02-07
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Dissolution characteristics of copper in hydrochloric acid medium and the effect of 4-amino 1,2,4-triazole (ATA) on the corrosion process have been studied using conventional electrochemical techniques and rotating ring-disc electrodes (RRDEs).
Corrosion potential (Ecorr) and corrosion current density (Icorr) were obtained by Tafel extrapolation methods.
Charge transfer resistance (Rct) and double-layer capacitance (Cdl) were obtained from the electrochemical impedance spectroscopy (EIS).
ATA was shown to be an effective inhibitor for the copper-corrosion inhibition in acid medium.
The corrosion rate was retarded in presence of inhibitors mainly because of the adsorption of the inhibitor on the electrode surface.
Adsorption of the inhibitor on the metal surface was found to follow the Langmuir adsorption isotherm.
Standard free energy change of the adsorption process (ΔGad0) was calculated to be −54.3 kJ mol−1; such a large negative value of ΔGad0 suggests the prescence of a chemisorption process.
American Psychological Association (APA)
Satpati, A. K.& Reddy, A. V. R.. 2011. Electrochemical Study on Corrosion Inhibition of Copper in Hydrochloric Acid Medium and the Rotating Ring-Disc Voltammetry for Studying the Dissolution. International Journal of Electrochemistry،Vol. 2011, no. 2011, pp.1-8.
https://search.emarefa.net/detail/BIM-451749
Modern Language Association (MLA)
Satpati, A. K.& Reddy, A. V. R.. Electrochemical Study on Corrosion Inhibition of Copper in Hydrochloric Acid Medium and the Rotating Ring-Disc Voltammetry for Studying the Dissolution. International Journal of Electrochemistry No. 2011 (2011), pp.1-8.
https://search.emarefa.net/detail/BIM-451749
American Medical Association (AMA)
Satpati, A. K.& Reddy, A. V. R.. Electrochemical Study on Corrosion Inhibition of Copper in Hydrochloric Acid Medium and the Rotating Ring-Disc Voltammetry for Studying the Dissolution. International Journal of Electrochemistry. 2011. Vol. 2011, no. 2011, pp.1-8.
https://search.emarefa.net/detail/BIM-451749
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-451749