Effect of hydrophilic group on inhibition behaviour of imidazoline for CO(2) corrosion of N80 in 3% NaCl solution

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	Effect of hydrophilic group on inhibition behaviour of imidazoline for CO(2) corrosion of N80 in 3% NaCl solution
	X. Liu; Y. G. Zheng
	2008
发表期刊	Corrosion Engineering Science and Technology
ISSN	1478-422X
卷号	43 期号:1 页码:87-92
摘要	Four kinds of imidazoline inhibitors with different hydrophilic group, i.e. carboxymertyl imidazoline (CMI-11), hydroxyethyl imidazoline (HEI-11), aminoethyl imidazoline (AEI-11) and imidazoline (IM-11) had been synthesised and characterised by infrared and ultraviolet spectra. The inhibition performance of these imidazoline inhibitors for CO(2) corrosion of N80 in 3%NaCl solution was investigated through linear polarisation resistance, polarisation curve and electrochemical impedance spectroscopy. In order to study the relationship between the molecular structure and inhibition properties of these imidazoline inhibitors, quantum chemical calculations have been also applied. The results showed that the presence of a hydrophilic group was beneficial to the corrosion inhibition properties of these imidazoline inhibitors, and the inhibition efficiency follows the order: CMI-11 > HEI-11 > AEI-11 > IM-11. The calculated quantum chemical parameters supported that the lower the lowest unoccupied and highest occupied molecular orbital energy gap, the higher the inhibition efficiency. The theoretical calculation was in good agreement with experimental results.
部门归属	[liu, x.; zheng, y. g.] chinese acad sci, inst met res, state key lab corros & protect, environm corros ctr, shenyang 110016, peoples r china. [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, environm corros ctr, 62 wencui rd, shenyang 110016, peoples r china;ygzheng@imr.ac.cn
关键词	Carbon Dioxide Corrosion Corrosion Inhibitor Imidazoline Hydrophilic Group Quantum Chemical Calculation Mild-steel Acidic Media Impedance Spectroscopy Molecular-structure Painted Metals Eis Derivatives Efficiency
URL	查看原文
WOS记录号	WOS:000256229400009
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32965
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Liu,Y. G. Zheng. Effect of hydrophilic group on inhibition behaviour of imidazoline for CO(2) corrosion of N80 in 3% NaCl solution[J]. Corrosion Engineering Science and Technology,2008,43(1):87-92.
APA	X. Liu,&Y. G. Zheng.(2008).Effect of hydrophilic group on inhibition behaviour of imidazoline for CO(2) corrosion of N80 in 3% NaCl solution.Corrosion Engineering Science and Technology,43(1),87-92.
MLA	X. Liu,et al."Effect of hydrophilic group on inhibition behaviour of imidazoline for CO(2) corrosion of N80 in 3% NaCl solution".Corrosion Engineering Science and Technology 43.1(2008):87-92.