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| Inhibition Action and Mechanism of the Self-assembled Monolayers of 3-amino-1,2,4-triazole on Cu-Ni Alloy |
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| 上海大学 |
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Cite this article:
;. Inhibition Action and Mechanism of the Self-assembled Monolayers of 3-amino-1,2,4-triazole on Cu-Ni Alloy. Acta Metall Sin, 2008, 44(2): 203-208 .
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Abstract The anticorrosion and inhibiting mechanism for the self-assembled monolayers(the SAMs) of 3-amino-1,2,4-triazole (ATA) on the surface of Cu-Ni alloy have been investigated by electrochemical method,as well as its adsorption behavior. The results indicate that ATA is liable to interact with Cu-Ni alloy as a result of formation of the SAMs on the surface of Cu-Ni alloy. The SAMs change the structure of the double-electric layer and make the potential of zero charge(PZC) shift in a positive direction.In addition, The SAMs restrain the process of anodic oxidation and have well anticorrosion effect .It is in good agreement with the results by EIS and polarization curve methods. The results from electrochemical measurements indicate that the corrosion resistance for Cu-Ni alloy electrode is improved by the ATA SAMs. Adsorption of the ATA SAMs is found to follow the Langmuir’s adsorption isotherm, and the adsorption mechanism is typical of chemisorption.
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Received: 03 July 2007
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