Study of Triethyl Phosphate Self-Assembled Films on Iron for Corrosion Inhibition

Authors

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

Abstract

The self-assembled film of triethyl phosphate(TEP) formed on the iron surface was found to protect iron from corrosion in 0.5 mol·L-1 H2SO4 efficiently.The inhibition effects were investigated using the electrochemical impedance spectroscopy(EIS).EIS demonstrated that the charge-transfer resistance of the electrode covered with TEP film was greater than that of the naked iron electrodes and the inhibition efficiency of TEP film increased quickly in the initial period and then increased slowly.Quantum chemical calculations provide information about the process of adsorption of molecules on the metal surface at the molecular level.

Keywords

self-assembled films, triethyl Phosphate, electrochemical impedance spectroscopy(EIS)

DOI Link

https://doi.org/10.61558/2993-074X.1918

Publication Date

2008-08-28

Online Available Date

2008-08-28

Revised Date

2008-08-28

Received Date

2008-08-28

Recommended Citation

Wen-juan GUO, Shen-hao CHEN, Wei HE, Xue-hui PANG, Yuan-yuan FENG. Study of Triethyl Phosphate Self-Assembled Films on Iron for Corrosion Inhibition[J]. Journal of Electrochemistry, 2008 , 14(3): 340-342.
DOI: 10.61558/2993-074X.1918
Available at: https://jelectrochem.xmu.edu.cn/journal/vol14/iss3/22