Corrosion inhibition behavior of four benzimidazole derivatives and benzotriazole on copper surface
Anti-Corrosion Methods and Materials
ISSN: 0003-5599
Article publication date: 11 October 2020
Issue publication date: 4 December 2020
Abstract
Purpose
This paper aims to reduce environment pollution caused by benzotriazole. The authors chose one of the best inhibitors from 2-aminobenzimidazole, 2-methylbenzimidazol, 2-mercaptobenzimidazole and benzimidazole in combination with benzotriazole.
Design/methodology/approach
The electrochemical measurement indicated that 2-methylbenzimidazol had the best inhibition behavior. Then, it was mixed with benzotriazole. Techniques such as field emission scanning electron microscopy, atomic force microscopy, Raman spectroscopy and optical contact angle measurements were used.
Findings
The results showed that the inhibition efficiency was up to 99.98%, when the mixture concentration was 20 mmol/L and the molar ratio 1:1.
Originality/value
1-benzotriazole was mixed with 2-methylbenzimidazol for the first time. During the exist of methyl, 2-methylbenzimidazol has the better inhibition; this point was ignored by researchers.
Keywords
Acknowledgements
The authors thank the Liaoning Provincial Department of Education Innovation Team Project (LT2015001) and the Liaoning Provincial College Innovation Team Project (2018479–14) for support.
Citation
Liu, L., Lu, S., Wu, Y.Q., Xie, J.Y. and Xing, J. (2020), "Corrosion inhibition behavior of four benzimidazole derivatives and benzotriazole on copper surface", Anti-Corrosion Methods and Materials, Vol. 67 No. 6, pp. 565-574. https://doi.org/10.1108/ACMM-12-2019-2235
Publisher
:Emerald Publishing Limited
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