Electrochemical impedance spectroscopy study on corrosion inhibition of benzyltriethylammonium chloride

Mohd Nazri Idris, Abdul Razak Daud, Norinsan Kamil Othman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Electrochemical Impedance Spectroscopy (EIS) was employed to study the corrosion inhibition behavior of benzyltriethylammonium chloride (BTC) for carbon steel corrosion. The inhibition efficiency was investigated in 1.0 M HCL solution at room temperature (25°C) by varying the BTC concentration. EIS results indicated that the double layer capacitance of electrolyte/carbon steel interface decreases with the increasing of BTC concentration and consequently enhances the polarization resistance of equivalence Randles circuit. The results indicated that inhibition efficiency of as high as 65% could be achieved when 10mM BTC was present in 1.0 M HCl solution as compared to inhibitor-free solution. The inhibition process of BTC on the carbon steel corrosion was found to obey Langmuir adsorption isotherm. This study revealed that BTC is suitable to be used as a corrosion inhibitor in acid media.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages23-28
Number of pages6
Volume1571
DOIs
Publication statusPublished - 2013
Event2013 UKM Faculty of Science and Technology Post-Graduate Colloquium - Selangor
Duration: 3 Jul 20134 Jul 2013

Other

Other2013 UKM Faculty of Science and Technology Post-Graduate Colloquium
CitySelangor
Period3/7/134/7/13

Fingerprint

corrosion
chlorides
impedance
carbon steels
spectroscopy
inhibitors
equivalence
isotherms
capacitance
electrolytes
acids
adsorption
room temperature
polarization

Keywords

  • Adsorption
  • Corrosion inhibitor
  • Electrochemical impedance spectroscopy
  • Inhibition efficiency

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Electrochemical impedance spectroscopy study on corrosion inhibition of benzyltriethylammonium chloride. / Idris, Mohd Nazri; Daud, Abdul Razak; Othman, Norinsan Kamil.

AIP Conference Proceedings. Vol. 1571 2013. p. 23-28.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Idris, MN, Daud, AR & Othman, NK 2013, Electrochemical impedance spectroscopy study on corrosion inhibition of benzyltriethylammonium chloride. in AIP Conference Proceedings. vol. 1571, pp. 23-28, 2013 UKM Faculty of Science and Technology Post-Graduate Colloquium, Selangor, 3/7/13. https://doi.org/10.1063/1.4858624
Idris, Mohd Nazri ; Daud, Abdul Razak ; Othman, Norinsan Kamil. / Electrochemical impedance spectroscopy study on corrosion inhibition of benzyltriethylammonium chloride. AIP Conference Proceedings. Vol. 1571 2013. pp. 23-28
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N2 - Electrochemical Impedance Spectroscopy (EIS) was employed to study the corrosion inhibition behavior of benzyltriethylammonium chloride (BTC) for carbon steel corrosion. The inhibition efficiency was investigated in 1.0 M HCL solution at room temperature (25°C) by varying the BTC concentration. EIS results indicated that the double layer capacitance of electrolyte/carbon steel interface decreases with the increasing of BTC concentration and consequently enhances the polarization resistance of equivalence Randles circuit. The results indicated that inhibition efficiency of as high as 65% could be achieved when 10mM BTC was present in 1.0 M HCl solution as compared to inhibitor-free solution. The inhibition process of BTC on the carbon steel corrosion was found to obey Langmuir adsorption isotherm. This study revealed that BTC is suitable to be used as a corrosion inhibitor in acid media.

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