Corrosion inhibition and adsorption behavior of imidazoline salt on N80 carbon steel in CO2-saturated solutions and its synergism with thiourea
文献类型：期刊论文
| 作者 | Okafor, P. C.2,3; Liu, C. B.2; Liu, X.2; Zheng, Y. G.2; Wang, F.1; Liu, C. Y.1; Wang, F.1 |
| 刊名 | JOURNAL OF SOLID STATE ELECTROCHEMISTRY
 |
| 出版日期 | 2010-08-01 |
| 卷号 | 14期号:8页码:1367-1376 |
| 关键词 | Adsorption CO2 corrosion Imidazoline Mild steel Synergism Thiourea |
| ISSN号 | 1432-8488 |
| DOI | 10.1007/s10008-009-0963-6 |
| 通讯作者 | Zheng, Y. G.(ygzheng@imr.ac.cn) |
| 英文摘要 | The inhibition and adsorption behavior of 2-undecyl-1-sodium ethanoate-imidazoline salt (2M2) and thiourea (TU) on N80 mild steel in CO2-saturated 3 wt.% NaCl solutions was studied at 25 A degrees C, pH 4, and 1 bar CO2 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. |
| 资助项目 | Chinese Academy of Sciences (CAS) ; Academy of Sciences for the Developing World ; Major State Basic Research[2006CB705800] ; PetroChina[07-02Z-01] |
| WOS研究方向 | Electrochemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000277939800004 |
| 出版者 | SPRINGER |
| 资助机构 | Chinese Academy of Sciences (CAS) ; Academy of Sciences for the Developing World ; Major State Basic Research ; PetroChina |
| 源URL | [http://ir.imr.ac.cn/handle/321006/99717]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zheng, Y. G. |
| 作者单位 | 1.Jilin Oilfield Corp PetroChina, Songyuan 138000, Jilin Province, Peoples R China 2.CAS, State Key Lab Corros & Protect, Inst Met Res, Shenyang 110016, Liaoning Prov, Peoples R China 3.Univ Calabar, Dept Pure & Appl Chem, Calabar 1115, Nigeria |
| 推荐引用方式 GB/T 7714 | Okafor, P. C.,Liu, C. B.,Liu, X.,et al. Corrosion inhibition and adsorption behavior of imidazoline salt on N80 carbon steel in CO2-saturated solutions and its synergism with thiourea[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY,2010,14(8):1367-1376. |
| APA | Okafor, P. C..,Liu, C. B..,Liu, X..,Zheng, Y. G..,Wang, F..,...&Wang, F..(2010).Corrosion inhibition and adsorption behavior of imidazoline salt on N80 carbon steel in CO2-saturated solutions and its synergism with thiourea.JOURNAL OF SOLID STATE ELECTROCHEMISTRY,14(8),1367-1376. |
| MLA | Okafor, P. C.,et al."Corrosion inhibition and adsorption behavior of imidazoline salt on N80 carbon steel in CO2-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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