Growth Behavior of Initial Product Layer Formed on Mg Alloy Surface Induced by Polyaniline

	Growth Behavior of Initial Product Layer Formed on Mg Alloy Surface Induced by Polyaniline
	Luo,Yizhong; Wang,Xianhong; Guo,Wei; Rohwerder,Michael
刊名	journal of the electrochemical society
	2015
卷号	162 期号:6 页码:c294-c301
关键词	COATING CATHODIC DELAMINATION CORROSION PROTECTION MAGNESIUM ALLOY ELECTROCHROMIC PROPERTIES ALUMINUM SURFACES EMERALDINE BASE FILM FORMATION REPASSIVATION INHIBITION PASSIVATION
通讯作者	luo,yz
英文摘要	the quality of the interfacial protective layer induced by polyaniline (pan!) has been claimed to play a crucial role for the enhanced corrosion protection of mg alloy, but its growth behavior is not well understood. here some composition. structure and growth kinetics of the protective layer formed at the pani-emeraldine base (eb) coating/az91d mg alloy interface were investigated to explore the growth mechanism. upon immersion in 0.5 m nacl solution, the growing interface layer under eb coating exhibited a fast passivation rate and an increased corrosion resistance, which was largely influenced by ion concentration. xps depth profiles showed that the eb-induced layer was a mixture of mgo and mg(oh)(2), in which no significant bi-layer structure existed and mgo was dominant throughout the bulk film. these observations suggest that the interaction between eb and mg can promote the faster growth of a stable mgo-rich layer mixed with mg(oh)(2) probably by solid reaction. meanwhile less hydration of mgo and dissolution-precipitation reaction occur, thus leading to less mg(oh)(2) in the outer layer. (c) the author(s) 2015. published by ecs. this is an open access article distributed under the terms of the creative commons attribution 4.0 license (cc by, http://creativecommons.org/licensestby/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited. all rights reserved.
收录类别	SCI
语种	英语
公开日期	2016-05-31
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/67924]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Luo,Yizhong,Wang,Xianhong,Guo,Wei,et al. Growth Behavior of Initial Product Layer Formed on Mg Alloy Surface Induced by Polyaniline[J]. journal of the electrochemical society,2015,162(6):c294-c301.
APA	Luo,Yizhong,Wang,Xianhong,Guo,Wei,&Rohwerder,Michael.(2015).Growth Behavior of Initial Product Layer Formed on Mg Alloy Surface Induced by Polyaniline.journal of the electrochemical society,162(6),c294-c301.
MLA	Luo,Yizhong,et al."Growth Behavior of Initial Product Layer Formed on Mg Alloy Surface Induced by Polyaniline".journal of the electrochemical society 162.6(2015):c294-c301.