Inhibition Mechanism of the Imidazoline Derivate in H_2S Solution

Authors

Jing-mao ZHAO, School of Materials Science and Technology,Beijing University of Chemical Technology,Beijing 100029,China;
He-xia LIU, School of Materials Science and Technology,Beijing University of Chemical Technology,Beijing 100029,China;
Chao XIAO, School of Materials Science and Technology,Beijing University of Chemical Technology,Beijing 100029,China;
Yuan LU, School of Materials Science and Technology,Beijing University of Chemical Technology,Beijing 100029,China;

Abstract

Weight-loss method and polarization curve measurement were employed to study the inhibition mechanism of imidazoline derivate for mild steel in acidic solution with H2S.The results show that the derivate can retard the cathodic process,and belongs to the cathodic-type inhibitor.The adsorption of the derivate on the surface of mild steel accords with the amended Langmuir adsorption isothermal equation,and higher temperature will facilitate its adsorption.The changes in the apparent activation energy(Ea) and the pre-exponential factor(A) of the corrosion reaction before and after the addition of inhibitor were also discussed.

Keywords

mild steel, corrosion inhibitor, H2S corrosion, Langmuir adsorption, imidazoline derivate

DOI Link

https://doi.org/10.61558/2993-074X.1856

Publication Date

2008-02-28

Online Available Date

2008-02-28

Revised Date

2008-02-28

Received Date

2008-02-28

Recommended Citation

Jing-mao ZHAO, He-xia LIU, Chao XIAO, Yuan LU. Inhibition Mechanism of the Imidazoline Derivate in H_2S Solution[J]. Journal of Electrochemistry, 2008 , 14(1): 18-23.
DOI: 10.61558/2993-074X.1856
Available at: https://jelectrochem.xmu.edu.cn/journal/vol14/iss1/5