Corrosion Inhibition Effect of 4-(2-Diethylamino-Ethylsulfonyl)-Phthalonitrile and 4,5-Bis(Hexylsulfonyl)-Phthalonitrile
Joint Authors
Kalkan, Ayfer
Ustamehmetoğlu, Belkis
Bayır, Zehra Altuntaş
Sezer, Esma
Çoban, Kerim
Source
International Journal of Electrochemistry
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-02-13
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Inhibition of stainless steel corrosion in a 3.0 M NaCl solution by 4-(2-diethylamino-ethylsulfanyl)-phthalonitrile (DAESPN) and 4,5-bis(hexylsulfonyl)-phthalonitrile (Bis-HSPN) was investigated by polarization and electrochemical impedance spectroscopy (EIS) measurements.
The values of cathodic (βc) and anodic (βa) Tafel slopes, icorr, Ecorr, corrosion rate (CR), and inhibition efficiences (IE%) obtained from polarization curves and polarization resistance (RP), double-layer capacitance (Cdl), specific capacitance (Csp) values were obtained from EIS.
Double-layer capacitance differences in the presence and absence of inhibitors were also obtained from EIS measurements as suggested in the literature in order to investigate the interaction of them with metal surface.
Results show that both DAESPN and Bis-HSPN are effective in cathodic reaction.
Impedance measurements suggest higher surface coverage for DAESPN.
The interaction between the inhibitor and the stainless steel was investigated by the adsorption isotherm.
Langmuir adsorption isotherm Kads was applied and ΔG values were obtained and found as 4.32×10−4, 1.17×10−4 and 9.2 kJ, 12.5 kJ for DAESPN and Bis-HSPN, respectively, which suggests the electrostatic interaction between charged metal surface and charged organic molecules.
American Psychological Association (APA)
Sezer, Esma& Ustamehmetoğlu, Belkis& Bayır, Zehra Altuntaş& Çoban, Kerim& Kalkan, Ayfer. 2011. Corrosion Inhibition Effect of 4-(2-Diethylamino-Ethylsulfonyl)-Phthalonitrile and 4,5-Bis(Hexylsulfonyl)-Phthalonitrile. International Journal of Electrochemistry،Vol. 2011, no. 2011, pp.1-5.
https://search.emarefa.net/detail/BIM-456056
Modern Language Association (MLA)
Sezer, Esma…[et al.]. Corrosion Inhibition Effect of 4-(2-Diethylamino-Ethylsulfonyl)-Phthalonitrile and 4,5-Bis(Hexylsulfonyl)-Phthalonitrile. International Journal of Electrochemistry No. 2011 (2011), pp.1-5.
https://search.emarefa.net/detail/BIM-456056
American Medical Association (AMA)
Sezer, Esma& Ustamehmetoğlu, Belkis& Bayır, Zehra Altuntaş& Çoban, Kerim& Kalkan, Ayfer. Corrosion Inhibition Effect of 4-(2-Diethylamino-Ethylsulfonyl)-Phthalonitrile and 4,5-Bis(Hexylsulfonyl)-Phthalonitrile. International Journal of Electrochemistry. 2011. Vol. 2011, no. 2011, pp.1-5.
https://search.emarefa.net/detail/BIM-456056
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-456056