Effect of 2-amino-3-mercaptopropanoic acid (cysteine) on the corrosion behaviour of low carbon steel in sulphuric acid
文献类型：期刊论文
| 作者 | E. E. Oguzie ; Y. Li ; F. H. Wang |
| 刊名 | Electrochimica Acta
 |
| 出版日期 | 2007 |
| 卷号 | 53期号:2页码:909-914 |
| 关键词 | low carbon steel corrosion cysteine anodic reaction cathodic reaction 1 m hcl mild-steel amino-acids inhibition derivatives methionine cystine iodide |
| ISSN号 | 0013-4686 |
| 中文摘要 | The effect of cysteine (cys) on the corrosion of low carbon steel (LCS) in sulphuric acid solution was investigated using electrochemical and scanning electron microscopy (SEM) techniques. Electrochemical impedance spectroscopy (EIS) results reveal that the presence of cys at low concentrations (0. 1-0.5 mmol L-1) promoted the LCS corrosion process, whereas an inhibiting effect was observed at higher concentrations (1.0-5.0 numol L-1), which was enhanced on deaeration of the test solution. Polarization results revealed that cys actually inhibited the cathodic process at all concentration but exerted a stimulating effect on the anodic metal dissolution reaction. Despite the cathodic inhibiting effect, the polarization resistances at low cys concentrations were less than that in the blank acid. This suggests that the anodic reaction was the predominant influence determining the corrosion rates in the presence of cys. This has been discussed vis-a-vis the catalytic effect of the Fe-cys complex, which turns the Fe surface more electrochemically active. (C) 2007 Published by Elsevier Ltd. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33764]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | E. E. Oguzie,Y. Li,F. H. Wang. Effect of 2-amino-3-mercaptopropanoic acid (cysteine) on the corrosion behaviour of low carbon steel in sulphuric acid[J]. Electrochimica Acta,2007,53(2):909-914. |
| APA | E. E. Oguzie,Y. Li,&F. H. Wang.(2007).Effect of 2-amino-3-mercaptopropanoic acid (cysteine) on the corrosion behaviour of low carbon steel in sulphuric acid.Electrochimica Acta,53(2),909-914. |
| MLA | E. E. Oguzie,et al."Effect of 2-amino-3-mercaptopropanoic acid (cysteine) on the corrosion behaviour of low carbon steel in sulphuric acid".Electrochimica Acta 53.2(2007):909-914. |
入库方式： OAI收割
来源：金属研究所
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