Corrosion inhibition of copper in tetra‐n‐butylammonium bromide aqueous solution by benzotriazole |
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| Authors: | S Liu J M Duan R Y Jiang Z P Feng R Xiao |
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| Affiliation: | 1. Department of Applied Chemistry, South China University of Technology, Guangzhou 510640 (P.R. China);2. Guangzhou Institute of Energy Conversion, CAS, Guangzhou 510640 (P.R. China) |
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| Abstract: | The corrosion inhibition behavior of benzotriazole (BTA) on copper in 17 wt% tetra‐n‐butylammonium bromide (TBAB) aerated aqueous solution was investigated by weight‐loss tests, potentiodynamic polarization, electrochemical impedance spectroscopy, and scanning electron microscopy/energy dispersive X‐ray spectroscopy. BTA is a good inhibitor in 17 wt% TBAB solution. The inhibition efficiency of BTA increases with increasing inhibitor concentration, attaining efficiencies of up to 90% calculated according to different methodologies. Adsorption of BTA in 17 wt% TBAB solution on the copper surface was found to obey the Langmuir adsorption isotherm. |
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| Keywords: | benzotriazole copper inhibition tetra‐n‐butylammonium bromide |
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