Electrochemical and XPS study of 2-merсaptobenzothiazole nanolayers on zinc and copper surface

• I. A. Arkhipushkin, Yu. E. Pronin, S. S. Vesely and L. P. Kazansky

A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119071 Russian Federation

Abstract: The electrochemical behavior of copper and zinc in neutral (рН 7.4) borate buffer solution with addition of 0.5 M NaCl and the effect of 2-merсaptobenzothiazole (MBT) on the electrochemical processes and adsorption on these metals has been studied by means of electrochemistry and X-ray photoelectron spectroscopy (XPS). The formation of MBT–metal cation complex films on copper and zinc surface has been shown. The effect of corrosive media composition and time-dependent relations of nanoscale film growth on the surface of the metals investigated have been determined. It was assumed that adsorbed MBT anion forms M(MBT)х, a polymeric complex where M = Cu⁺ (x = 1) or Zn²⁺ (x = 2).

Keywords: zinc, copper, inhibitor, 2-mercaptobenzothiazole, XPS

Int. J. Corros. Scale Inhib., 2014, 3, no. 2, 78–88 PDF (1 241 K)
doi: 10.17675/2305-6894-2014-3-2-078-088

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