期刊
CORROSION SCIENCE
卷 98, 期 -, 页码 107-118出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2015.05.006
关键词
Copper; Polarization; XPS; Neutral inhibition
资金
- Slovenian Research Agency [P2-0393]
The electrochemical behaviour and long-term immersion tests of copper were studied in 3 wt.% NaCI solution, with and without addition of imidazole (ImiH), benzimidazole (BimH) and its methyl and mercapto derivatives (1-methyl-imidazole (ImiMe), 2-mercapto-1-methyl-imidazole (SH-ImiMe) and 2-mercaptobenzimidazole (SH-BimH)). The polarization resistance of inhibitors at 1mM concentration differs markedly and displays the following trend: SH-BimH > SH-ImiMe > BimiH> lmiH > ImiMe. These inhibitors act as mixed inhibitors with a stronger effect on the anodic side. X-ray photoelectron analysis showed that the differences in inhibition efficiency are related to differences in composition and structure of the protective layer formed. (C) 2015 Elsevier Ltd. All rights reserved.
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