Corrosion inhibition and adsorption behavior of imidazoline salt on N80 carbon steel in CO(2)-saturated solutions and its synergism with thiourea
文献类型：期刊论文
| 作者 | P. C. Okafor ; C. B. Liu ; X. Liu ; Y. G. Zheng ; F. Wang ; C. Y. Liu |
| 刊名 | Journal of Solid State Electrochemistry
 |
| 出版日期 | 2010 |
| 卷号 | 14期号:8页码:1367-1376 |
| 关键词 | Adsorption CO(2) corrosion Imidazoline Mild steel Synergism Thiourea impedance spectroscopy eis sulfuric-acid-solution m hcl solutions mild-steel dioxide corrosion benzimidazole derivatives anodic-dissolution chloride solutions h2so4 solutions iodide-ions |
| ISSN号 | 1432-8488 |
| 中文摘要 | The inhibition and adsorption behavior of 2-undecyl-1-sodium ethanoate-imidazoline salt (2M2) and thiourea (TU) on N80 mild steel in CO(2)-saturated 3 wt.% NaCl solutions was studied at 25 A degrees C, pH 4, and 1 bar CO(2) partial pressure using electrochemical methods. It was found that inhibition efficiency (eta%) increased with increase in 2M2 concentration but decreased with increase in TU concentration with optimum eta% value at 20 mg l(-1) TU. The data suggest that the compounds functioned via a mixed-inhibitor mechanism. The inhibition process is attributed to the formation of an adsorbed film of 2M2 and TU via the inhibitors polycentric adsorption sites on the metal surface which protects the metal against corrosion. A synergistic effect was observed between TU and 2M2. Potential of unpolarizability, E (u), was observed in the presence of 100 mg l(-1) TU which was shifted positively in the presence of 2M2-100 mg l(-1) TU blends, which suggests that the presence of 2M2 stabilized the adsorption of TU molecules on the surface of the metal. The adsorption characteristics of 2M2 were approximated by Langmuir adsorption isotherm. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31396]  |
| 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 | P. C. Okafor,C. B. Liu,X. Liu,et al. Corrosion inhibition and adsorption behavior of imidazoline salt on N80 carbon steel in CO(2)-saturated solutions and its synergism with thiourea[J]. Journal of Solid State Electrochemistry,2010,14(8):1367-1376. |
| APA | P. C. Okafor,C. B. Liu,X. Liu,Y. G. Zheng,F. Wang,&C. Y. Liu.(2010).Corrosion inhibition and adsorption behavior of imidazoline salt on N80 carbon steel in CO(2)-saturated solutions and its synergism with thiourea.Journal of Solid State Electrochemistry,14(8),1367-1376. |
| MLA | P. C. Okafor,et al."Corrosion inhibition and adsorption behavior of imidazoline salt on N80 carbon steel in CO(2)-saturated solutions and its synergism with thiourea".Journal of Solid State Electrochemistry 14.8(2010):1367-1376. |
入库方式： OAI收割
来源：金属研究所
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