Please use this identifier to cite or link to this item: https://doi.org/10.1021/ie070669f
Title: Evaluation of an organic corrosion inhibitor on abiotic corrosion and microbiologically influenced corrosion of mild steel
Authors: Sheng, X.
Ting, Y.-P. 
Pehkonen, S.O. 
Issue Date: 24-Oct-2007
Source: Sheng, X., Ting, Y.-P., Pehkonen, S.O. (2007-10-24). Evaluation of an organic corrosion inhibitor on abiotic corrosion and microbiologically influenced corrosion of mild steel. Industrial and Engineering Chemistry Research 46 (22) : 7117-7125. ScholarBank@NUS Repository. https://doi.org/10.1021/ie070669f
Abstract: Inhibition of mild steel corrosion by 2-methylbenzimidazole (MBI) in sterile enriched artificial seawater, and seawater with sulfate-reducing bacteria (SRB), was investigated using direct current polarization, electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and atomic force microscopy (AFM). MBI was shown to be an effective inhibitor in controlling abiotic corrosion, and as well as microbiologically influenced corrosion (MIC) by two strains of SRB: Desulfovibrio desulfuricans and a local marine isolate (Desulfovibrio singaporenus). Tafel plots reveal that MBI predominantly controls the cathodic reaction. MBI is more effective in the inhibition of corrosion caused by D. desulfuricans than that caused by D. singaporenus. The corrosion inhibition effect of MBI on MIC is partially due to the inhibition of the bacterial activity. The adsorption of MBI on the mild steel surface follows a Langmuir adsorption isotherm model. © 2007 American Chemical Society.
Source Title: Industrial and Engineering Chemistry Research
URI: http://scholarbank.nus.edu.sg/handle/10635/63869
ISSN: 08885885
DOI: 10.1021/ie070669f
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