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	Electrochemical study on the effect of chloride ions on the passivity of reinforcing steel in simulated concrete pore solutions
	Wu, Qun ; Wu Q(吴群) ; Liu, Yu ; Liu Y(刘玉) ; Du, Ronggui ; Du RG(杜荣归) ; Lin, Changjian ; Lin CJ(林昌健)
	2008
关键词	reinforcing steel passive film chloride ion EIS Mott-Schottky plot
英文摘要	Potentiodynamic anodic polarization, electrochemical impedance spectroscopy and Mott-Schottky plot were used to study the effect of passive potentials and chloride ion concentrations on the corrosion behavior of reinforcing steel in simulated concrete pore solutions. The results indicated that the compact passive films were formed on the reinforcing steel surface at different passive potentials from -0.200 to 0.200 V vs SCE for 4800 s, with increasing the potential the superficial donor densities decreased but the deep donor densities increased, and the charge transfer resistance of the film reached the highest value at the passive potential 0.200 V. Immersed in simulated concrete pore solutions with chloride ion concentration 0.01-0.08 mol/L and pH12.50 for 24 h, the passive film still behaved as n-type semiconductor, only one type of donor appeared from the Mott-Schottky plot, and the deep donor densities decreased with increasing chloride ion concentration.
语种	英语
出版者	SCIENCE CHINA PRESS
内容类型	期刊论文
源URL	[http://dx.doi.org/doi:CNKI:SUN:JSXB.0.2008-03-018]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Wu, Qun,Wu Q,Liu, Yu,et al. Electrochemical study on the effect of chloride ions on the passivity of reinforcing steel in simulated concrete pore solutions[J],2008.
APA	Wu, Qun.,吴群.,Liu, Yu.,刘玉.,Du, Ronggui.,...&林昌健.(2008).Electrochemical study on the effect of chloride ions on the passivity of reinforcing steel in simulated concrete pore solutions..
MLA	Wu, Qun,et al."Electrochemical study on the effect of chloride ions on the passivity of reinforcing steel in simulated concrete pore solutions".(2008).

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