Corrosion Inhibition and Adsorption Behavior of Nerium Oleander Extract on Carbon Steel in Hydrochloric Acid Solution

Nerium Oleander (N. Oleander) was investigated as a corrosion inhibitor for carbon steel (CS) in 1 M HCl solution using electrochemical techniques (potentiodynamic polarization (PP), electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM)) and nonelectrochemical m...

Full description

Saved in:
Bibliographic Details
Published inInternational journal of electrochemical science Vol. 14; no. 4; pp. 3932 - 3948
Main Authors Fouda, A.S., Azeem, M. Abdel, Mohamed, S.A., El-Hossiany, A., El-Desouky, E.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.04.2019
Subjects
AFM
Carbon steel
HCl
Inhibition protection
N. Oleander extract
SEM
HCl
AFM
N. Oleander extract
Inhibition protection
Carbon steel
SEM
Online AccessGet full text

Cover

More Information
Summary:Nerium Oleander (N. Oleander) was investigated as a corrosion inhibitor for carbon steel (CS) in 1 M HCl solution using electrochemical techniques (potentiodynamic polarization (PP), electrochemical impedance spectroscopy (EIS) and electrochemical frequency modulation (EFM)) and nonelectrochemical method (weight loss (WL)).The data showed that the inhibition protection (%IP) raised and corrosion rate (CR) lowered with raising both NOE concentration and temperature to reach 91% at300 ppm. The adsorption of the NOE on CS surface was found to obey the Langmuir’s adsorption isotherm. The PP curves showed that this extract behaved as a mixed type inhibitor. Fourier transform infrared (FT-IR) was utilized to detect the functional groups adsorbed on CS surface. Surface morphology was examined using scanning electron microscope (SEM) and atomic force microscopy (AFM) techniques.
ISSN:1452-3981
1452-3981
DOI:10.20964/2019.04.44