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Corrosion inhibition of copper in tetra-n-butylammonium bromide aqueous solution by benzotriazole

✍ Scribed by S. Liu; J. M. Duan; R. Y. Jiang; Z. P. Feng; R. Xiao

Publisher
John Wiley and Sons
Year
2009
Tongue
German
Weight
457 KB
Volume
62
Category
Article
ISSN
0947-5117

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✦ Synopsis

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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