期刊
CORROSION SCIENCE
卷 82, 期 -, 页码 271-279出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2014.01.028
关键词
Copper; Passivity; Potentiostatic; Polarization; SEM; XPS
资金
- Nancy and Stephen Grand Technion Energy Program (GTEP)
This work presents the combined effect of two inhibitors, potassium sorbate (2,4-hexadienoic acid potassium salt) and 1,2,3-benzotriazole, on the corrosion behavior of copper in sulfate based solutions. Individual and combined characteristics of copper corrosion inhibition in Sulfate solution in the presence of potassium sorbate (K-sorbate) and benzotriazole (BTAH) were studied with the use of electrochemical, microscopic and spectroscopic methods. Whereas, BTAH alone protects copper from corrosion attack in sulfate solutions only in a limited potential range below 0.4 V vs. saturated calomel electrode (SCE), the presence of K-sorbate combined with BTAH in such solutions enables the protection of the copper surface at potentials above 0.4 V-SCE. The mixture of both inhibitors provides supplementary and robust corrosion protection of Cu over a wide potential range. (C) 2014 Elsevier Ltd. All rights reserved.
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