Corrosion inhibition of mild steel by ethylamino imidazoline derivative in CO(2)-saturated solution

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	Corrosion inhibition of mild steel by ethylamino imidazoline derivative in CO(2)-saturated solution
	P. C. Okafor; X. Liu; Y. G. Zheng
	2009
发表期刊	Corrosion Science
ISSN	0010-938X
卷号	51 期号:4 页码:761-768
摘要	The corrosion inhibition and adsorption behaviour of 2-undecyl-1-ethylamino imidazoline (2UEI) on N80 mild steel in CO(2)-saturated 3% NaCl solutions was investigated using potentiodynamic polarization, electrochemical impedance spectroscopy techniques and SEM observation. Inhibitor efficiency increased with increase in 2UEI concentration. Temperature studies revealed an increase in inhibition efficiency with rise in temperature and corrosion activation energies decreased in the presence of 2UEI. A mechanism of chemical adsorption of 2UEI on the metal's surface is proposed. The adsorption characteristics of the inhibitor were approximated by Temkin isotherm. The inhibition efficiency of 2UEI was enhanced in the presence of iodide ions. (C) 2009 Elsevier Ltd. All rights reserved.
部门归属	[okafor, p. c.; liu, x.; zheng, y. g.] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, liaoning prov, peoples r china. [okafor, p. c.] univ calabar, dept pure & appl chem, calabar, nigeria. [liu, x.] shenyang inst chem technol, dept appl chem, shenyang 110142, peoples r china.;zheng, yg (reprint author), chinese acad sci, inst met res, state key lab corros & protect, 62 wencui rd, shenyang 110016, liaoning prov, peoples r china;pcokafor@chemist.com ygzheng@imr.ac.cn
关键词	Mild Steel Eis Polarization Acid Corrosion Acid Inhibition Carbon-dioxide Corrosion Mechanistic Model Acid-solutions Sulfuric-acid Co2 Corrosion Iron Films Behavior Oil Environment
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32223
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	P. C. Okafor,X. Liu,Y. G. Zheng. Corrosion inhibition of mild steel by ethylamino imidazoline derivative in CO(2)-saturated solution[J]. Corrosion Science,2009,51(4):761-768.
APA	P. C. Okafor,X. Liu,&Y. G. Zheng.(2009).Corrosion inhibition of mild steel by ethylamino imidazoline derivative in CO(2)-saturated solution.Corrosion Science,51(4),761-768.
MLA	P. C. Okafor,et al."Corrosion inhibition of mild steel by ethylamino imidazoline derivative in CO(2)-saturated solution".Corrosion Science 51.4(2009):761-768.