The Inhibition Synergistic Effect Between Imidazoline Derivative and Thiourea

Authors

Jing-mao ZHAO, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
He-xia LIU, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
Wei DI, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
Yu ZUO, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China;

Corresponding Author

Yu ZUO

Abstract

The inhibition synergistic effect between imidazoline and thiourea for carbon steel in CO_2 saturated brine solution was investigated by using weight-loss method, polarization curves measureament and XPS. The results showd that the inhibition efficiency increased significantly when imidazoline derivative was added as a corrosion inhibitor in the solution together with thiourea. The N and S atoms in the inhibitor film adsorbed on the surface of carbon steel, and N atoms predominated in the film near the solution and decreased gradually with the film depth and finally S atoms were the major element in the film near the matrix. It was concluded that imidazoline and thiourea could form a cage complex which adsorbed on the surface of steel and provided a compact film and a better inhibition.

Keywords

Corrosion inhibitor, Synergistic effect, Imidazoline derivative, Thiourea, Sour corrosion

DOI Link

https://doi.org/10.61558/2993-074X.1599

Publication Date

2004-11-28

Online Available Date

2004-11-28

Revised Date

2004-11-28

Received Date

2004-11-28

Recommended Citation

Jing-mao ZHAO, He-xia LIU, Wei DI, Yu ZUO. The Inhibition Synergistic Effect Between Imidazoline Derivative and Thiourea[J]. Journal of Electrochemistry, 2004 , 10(4): 440-445.
DOI: 10.61558/2993-074X.1599
Available at: https://jelectrochem.xmu.edu.cn/journal/vol10/iss4/12