Abstract
The formation of an effective anti-corrosion film on copper surfaces has been achieved by immersion of a chemically cleaned copper plate into a solution of 2-mercaptobenzimidazole in ethanol. This film is extremely stable as compared with the anti-corrosion layer formed on an oxidized surface. The formation mechanism and the structure of the inert film have been investigated by the use of infrared and X-ray photoelectron spectroscopy. Its anti-corrosion characteristics in several media were investigated by the use of cyclic voltammetry.
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