Corrosion Inhibition of Self-assembled Films on Iron by Electrochemical Impedance Spectroscopy

Authors

Yuan-yuan FENG, Department of Chemistry,Qufu Normal University,Qufu 273165,Shandong,China;School of Chemistry and Chemical Engineering,Shandong University,Jinan 250100,Shandong,China;
Shen-hao CHEN, School of Chemistry and Chemical Engineering,Shandong University,Jinan 250100,Shandong,China;
Juan-juan ZHOU, School of Chemistry and Chemical Engineering,Shandong University,Jinan 250100,Shandong,China;
Wen-juan GUO, School of Chemistry and Chemical Engineering,Shandong University,Jinan 250100,Shandong,China;School of Chemistry and Chemical Engineering,University of Jinan,Jinan 250022,Shandong,China;

Abstract

The self-assembled films of tetradecylamine were formed on iron surface,and the inhibition ability of which for iron corrosion in 0.5 mol/L H2SO4 solutions was studied by electrochemical impedance spectroscopy technique.Results indicated that longer immersion time would result in stronger inhibition ability of the films.The maximal inhibition efficiency(IE) of the tetradecylamine films was 68.7%.When the tetradecylamine films were modified by dodecylthiol,the mixed films became denser and more stable,thus the inhibition ability increased remarkably.The η of the mixed films increased to 78.2%.

Keywords

iron, self-assembled films, corrosion inhibition, electrochemical impedance spectroscopy

DOI Link

https://doi.org/10.61558/2993-074X.1919

Publication Date

2008-08-28

Online Available Date

2008-08-28

Revised Date

2008-08-28

Received Date

2008-08-28

Recommended Citation

Yuan-yuan FENG, Shen-hao CHEN, Juan-juan ZHOU, Wen-juan GUO. Corrosion Inhibition of Self-assembled Films on Iron by Electrochemical Impedance Spectroscopy[J]. Journal of Electrochemistry, 2008 , 14(3): 343-346.
DOI: 10.61558/2993-074X.1919
Available at: https://jelectrochem.xmu.edu.cn/journal/vol14/iss3/23