Abstract
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.
Graphical Abstract
Keywords
electrochemistry, surface enhanced Raman spectroscopy, nickel electrode, benzimidazole
Publication Date
2014-08-28
Online Available Date
2014-05-01
Revised Date
2014-04-25
Received Date
2014-01-23
Recommended Citation
Ping-jie WEI, Ya-xian YUAN, Min-min XU, Jian-lin YAO, Ren-ao GU.
Electrochemical and Surface Enhanced Raman Spectroscopic Studies of Benzimidazole on Nickel Electrode[J]. Journal of Electrochemistry,
2014
,
20(4): 349-352.
DOI: 10.13208/j.electrochem.131172
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol20/iss4/8
References
[1] Morsy M A, Al-Khaldi M A, Suwaiyan A. Normal vibrational mode analysis and assignment of benzimidazole by ab initio and density functional calculations and polarized infrared and Raman spectroscopy[J]. The Journal of Physical Chemistry A, 2002, 106(40): 9196-9203.
[2] Carron K T, Xue G, Lewis M L. A surface enhanced Raman spectroscopy study of the corrosion-inhibiting properties of benzimidazole and benzotriazole on copper[J]. Langmuir, 1991, 7(1): 2-4.
[3] Lewis M L, Ledung L, Carron K T. Surface structure determination of thin films of benzimidazole on copper using surface enhanced Raman spectroscopy[J]. Langmuir, 1993, 9(1): 186-191.
[4] Popova A, Raicheva S, Sokolova E, et al. Frequency dispersion of the interfacial impedance at mild steel corrosion in acid media in the presence of benzimidazole derivatives[J]. Langmuir, 1996, 12(8): 2083-2089.
[5] Thibault S. Comparison of inhibitory properties of nitrogen-compounds on copper corrosion in acid-solution[J]. Corrosion Science, 1997, 17: 701-709.
[6] Huang Q J, Lin X F, Yang Z L, et al. An investigation of the adsorption of pyrazine and pyridine on nickel electrodes by in situ surface-enhanced Raman spectroscopy[J]. Journal of Electroanalytical Chemistry, 2004, 563(1): 121-131.
[7] Huang Q J, Li X Q, Yao J L, et al. Extending surface Raman spectroscopic studies to transition metals for practical applications: III. Effects of surface roughening procedure on surface-enhanced Raman spectroscopy from nickel and platinum electrodes[J]. Surface Science, 1999, 427-428: 162-166.
[8] Huang Q J, Yao J L, Gu R A, et al. Surface Raman spectroscopic studies of pyrazine adsorbed onto nickel electrodes[J]. Chemical Physics Letters, 1997, 271(1/3):101-106.
[9] Cao P G, Yao J L, Zheng J W, et al. Comparative study of inhibition effects of benzotriazole for metals in neutral solutions as observed with surface-enhanced Raman spectroscopy[J]. Langmuir, 2002, 18(1):100-104.
[10] Gu W(顾伟). A SERS-active surface of Ni electrode obtained by electrochemistry method and application of inhibitions on its surface[D]. Suzhou: Soochow University(苏州大学), 2005.
[11] Zhang J(张军), Zhao W M(赵卫民), Guo W Y(郭文跃), et al. Theoretical evaluation of corrosion inhibition performance of benzimidazole corrosion inhibitors[J]. Acta Physico-Chimica Sinica(物理化学学报), 2008, 24(7): 1239-1244.
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