Electrochemical study of corrosion inhibition and adsorption behaviour for pure iron by polyacrylamide in H2SO4: Synergistic effect of iodide ions

doi:10.1016/j.corsci.2010.01.026

IMR OpenIR

	Electrochemical study of corrosion inhibition and adsorption behaviour for pure iron by polyacrylamide in H2SO4: Synergistic effect of iodide ions
	Umoren, S. A.1,2; Li, Y.1; Wang, F. H.1
通讯作者	Li, Y.(yiling@imr.ac.cn)
	2010-05-01
发表期刊	CORROSION SCIENCE
ISSN	0010-938X
卷号	52 期号:5 页码:1777-1786
摘要	Corrosion inhibition and adsorption behaviour for pure iron in 0.5 M H2SO4 by polyacrylamide (PA) were investigated using electrochemical techniques. The effect of iodide ion additives was also studied. It was found that inhibition efficiency increased with PA concentration. Corrosion inhibition was afforded by adsorption of PA onto the metal following El-Awady kinetic thermodynamic adsorption isotherm model via chemisorption mechanism. A mixed inhibition mechanism is proposed for the inhibitive effects of PA as revealed by potentiodynamic polarization technique. A synergistic effect was observed between PA and KI as evident from the values of synergism parameter found to be greater than unity. (C) 2010 Elsevier Ltd. All rights reserved.
关键词	Iron Polyacrylamide Iodide ion Adsorption Corrosion inhibition Synergism
资助者	Chinese Academy of Sciences (CAS) ; Academy of Sciences for the Developing World (TWAS)
DOI	10.1016/j.corsci.2010.01.026
收录类别	SCI
语种	英语
资助项目	Chinese Academy of Sciences (CAS) ; Academy of Sciences for the Developing World (TWAS)
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000277224400029
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：162[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/321006/100308
专题	中国科学院金属研究所
通讯作者	Li, Y.
作者单位	1.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China 2.Univ Uyo, Fac Sci, Dept Chem, Uyo, Nigeria
推荐引用方式 GB/T 7714	Umoren, S. A.,Li, Y.,Wang, F. H.. Electrochemical study of corrosion inhibition and adsorption behaviour for pure iron by polyacrylamide in H2SO4: Synergistic effect of iodide ions[J]. CORROSION SCIENCE,2010,52(5):1777-1786.
APA	Umoren, S. A.,Li, Y.,&Wang, F. H..(2010).Electrochemical study of corrosion inhibition and adsorption behaviour for pure iron by polyacrylamide in H2SO4: Synergistic effect of iodide ions.CORROSION SCIENCE,52(5),1777-1786.
MLA	Umoren, S. A.,et al."Electrochemical study of corrosion inhibition and adsorption behaviour for pure iron by polyacrylamide in H2SO4: Synergistic effect of iodide ions".CORROSION SCIENCE 52.5(2010):1777-1786.