Journal of Mining and Metallurgy B: Metallurgy
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2017, vol. 53, iss. 3, pp. 349-356
Electrochemical behavior of AgCu50 in alkaline media in the presence of chlorides and 2-mercaptobenzothiazole
University of Belgrade, Technical Faculty, Bor
New approach in designing materials for energy conversion and energy storage systems (MESTD - 172060)

Keywords: Silver; Copper; Alloy AgCu50; Potentiodynamic polarization; 2-mercaptobenzothiazole
Electrochemical behavior of an alloy AgCu50, pure copper, and pure silver, respectively, was investigated by measuring the open circuit potentials using anodic potentiodynamic polarization and potentiostatic method in 0.1 moldm-3 NaOH + 0.02 moldm-3 NaCl solution, without and with adding 2-mercaptobenzothiazole in various concentrations (0.00001 - 0.001 moldm-3). Anodic polarization curves for AgCu50 alloy, showed four current peaks. Potentiostatic curves showed that values of the stationary current densities drop down with the increase of 2-mercaptobenzothiazole concentration in the electrolyte. The electrode surface was analyzed by optical microscopy after the potentiostatic oxidation. Micrographs confirmed that 2-mercaptobenzothiazole has got the inhibitory effect by forming the film of CuMBT and AgMBT which protect the electrode surface from corrosion.
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article language: English
document type: unclassified
DOI: 10.2298/JMMB170623044G
published in SCIndeks: 13/11/2017
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