Corresponding Author

Jian-lin YAO(jlyao@suda.edu.cn)


By measuring cyclic voltammograms and polarization curves, the inhibition effects of benzimidazole (BMIH) concentration in acetonitrile system on a nickel electrode were investigated. It was found that the oxidation and the corrosion potentials shifted positively, and the oxidation current decreased with the increase in the concentration of BIMH. Potential dependent adsorption and film formation behavior of BMIH on the nickel electrode were investigated by in situ SERS spectroscopy. With the potential moving from negative direction to positive direction, the complexes made of BIMH and nickel were formed, preventing the nickel electrode from corrosion. In addition, the 0.001 mol·L-1 of BIMH was good enough for corrosion inhibition of the nickel surface in acetonitrile system.

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electrochemistry, surface enhanced Raman spectroscopy, nickel electrode, benzimidazole

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