Inhibition of CO(2) corrosion of N80 carbon steel by carboxylic quaternary imidazoline and halide ions additives

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	Inhibition of CO(2) corrosion of N80 carbon steel by carboxylic quaternary imidazoline and halide ions additives
	P. C. Okafor; C. B. Liu; X. Liu; Y. G. Zheng
	2009
发表期刊	Journal of Applied Electrochemistry
ISSN	0021-891X
卷号	39 期号:12 页码:2535-2543
摘要	The inhibition of the corrosion of N80 mild steel by 2-undecyl-1-1-ethylamino-1-ethylcarboxyl quaternary imidazoline (CQI) in CO(2)-saturated 3% NaCl and 3% Na(2)SO(4) solutions was studied using electrochemical methods. Inhibition efficiency increased with increase in CQI concentration and synergistically increased in the presence of halide ions. CQI inhibited the corrosion reaction by chemical adsorption on the metal/solution interface in halide free solutions and by a combination of chemical and coulombic attraction in the presence of halide ions. The adsorption characteristics of the inhibitor were approximated by Frumkin isotherm and El-Awady et al. kinetic-thermodynamic model.
部门归属	[okafor, p. c.; liu, c. b.; liu, x.; zheng, y. g.] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, liaoning, 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, peoples r china;pcokafor@chemist.com ygzheng@imr.ac.cn
关键词	Co(2) Corrosion Mild Steel Imidazoline Halide Ions Synergism Electrochemical Impedance Spectroscopy 3-percent Nacl Solution Mild-steel Dioxide Corrosion Anodic-dissolution Sulfuric-acid Hydrochloric-acid H2so4 Solutions Reaction Model Iron
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32222
专题	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. Inhibition of CO(2) corrosion of N80 carbon steel by carboxylic quaternary imidazoline and halide ions additives[J]. Journal of Applied Electrochemistry,2009,39(12):2535-2543.
APA	P. C. Okafor,C. B. Liu,X. Liu,&Y. G. Zheng.(2009).Inhibition of CO(2) corrosion of N80 carbon steel by carboxylic quaternary imidazoline and halide ions additives.Journal of Applied Electrochemistry,39(12),2535-2543.
MLA	P. C. Okafor,et al."Inhibition of CO(2) corrosion of N80 carbon steel by carboxylic quaternary imidazoline and halide ions additives".Journal of Applied Electrochemistry 39.12(2009):2535-2543.