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Citation: Gu Ren-Ao, Zhang Zhe-Ru, Hu Xiao-Kun, Deng Zheng-Fa. Raman Spectro-Electrochemistry Study of Corrosion on Copper Surface[J]. Acta Physico-Chimica Sinica, ;1995, 11(05): 473-476. doi: 10.3866/PKU.WHXB19950520 shu

Raman Spectro-Electrochemistry Study of Corrosion on Copper Surface

1.
Department of Chemistry,Suzhou University,Suzhou 215006

Received Date: 12 April 1994
Available Online: 15 May 1995

This paper presents the experimental investigation of SERS spectra of the corrosion-inhibiting properties of 2-aminobenzimidazole and 6-nitrobenzimidazole on the copper electrode. The result suggests that the two molecules, except the loss of portons, are nondissociatively chemisorbed on copper and that adsorption occurs solely through interaction of the nitrogen atom with the copper substrate in the imidazole moiety. Their different abilities to act as corrosion inhibitors are discussed from the viewpoint of the cyclic voltammogram and the structural information obtained from SERS. An adsorption process for the molecules on the copper surface is also discussed.
- Surface enhanced Raman scattering,
- Corrosion inhibitor,
- Copper
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