Corrosion Inhibition of Mild Steel by Benzotriazoliumionic Liquid in Hydrochloric Acid

Abstract:

The inhibiting behavior of 1-ethyl-3-butylbenzotriazolium ionic liquids，[C₂Bt][Br] ,on mild steel corrosion in 5 wt.% HCl as corroding solution was investigated using weight loss，potentiodynamic polarization and electrochemical impedance measurements. The obtained results indicated that [C₂Bt][Br] is a good inhibitor for the mild steel in 5 wt.% HCl solution. The inhibition efficiency increased with an increase of inhibitive concentration. Potentiodynamic polarization data indicated that the [C₂Bt][Br] acted essentially as a mixed-type inhibitor. The electrochemical impedance study showed that corrosion inhibition took place by adsorption.

• Periodical: Advanced Materials Research (Volumes 239-242)
• Pages: 1409-1413
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.239-242.1409
• Online since: May 2011
• Authors: Hong Mei Wang, Ke Long Huang, Zhi Ping Zhu
• Keywords: Benzotriazolium Ionic Liquid, Corrosion Inhibition, Electrochemical Measurement, Mild Steel

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