Cathodic protection: A new strategy to enable the formation of nanostructured polypyrrole on magnesium

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	Cathodic protection: A new strategy to enable the formation of nanostructured polypyrrole on magnesium
	Cui, Xin ; Huang, Xiang ; He, Yuan ; Dai, Lingfeng ; Wang, Shihui ; Sun, Yanan ; Shi, Wei ; Ge, Dongtao ; Huang X(黄翔) ; Sun YN(孙亚楠) ; Shi W(石巍) ; Ge DT(葛东涛)
刊名	http://dx.doi.org/10.1016/j.synthmet.2014.05.017
	2014
关键词	Cathodic protection Coatings Conducting polymers Corrosion Magnesium Nanostructures Redox reactions
英文摘要	Cathodic protection, a conventional technique of protecting metal from corrosion, was used to enable the formation of polypyrrole (PPy) film on biodegradable metal magnesium (Mg). The formation procedure was as follows: first, Mg corrosion was suppressed by applying a negative potential to the Mg cathode; second, oxidant nitrosyl ion (NO+) was generated on Mg surface through a redox reaction that obtained electron from Mg; third, pyrrole was oxidized to polypyrrole on Mg by NO+. It was interesting to observe that the formed PPy exhibited porous nanostructured morphology. Subsequent corrosion tests showed that the PPy coating could slow down the Mg corrosion in physiological saline, but could not stop corrosion completely, which was especially useful for a coating material of biodegradable metal implants. ? 2014 Elsevier B.V.
语种	英语
出版者	Elsevier Ltd
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/93733]
专题	医学院－已发表论文
推荐引用方式 GB/T 7714	Cui, Xin,Huang, Xiang,He, Yuan,et al. Cathodic protection: A new strategy to enable the formation of nanostructured polypyrrole on magnesium[J]. http://dx.doi.org/10.1016/j.synthmet.2014.05.017,2014.
APA	Cui, Xin.,Huang, Xiang.,He, Yuan.,Dai, Lingfeng.,Wang, Shihui.,...&葛东涛.(2014).Cathodic protection: A new strategy to enable the formation of nanostructured polypyrrole on magnesium.http://dx.doi.org/10.1016/j.synthmet.2014.05.017.
MLA	Cui, Xin,et al."Cathodic protection: A new strategy to enable the formation of nanostructured polypyrrole on magnesium".http://dx.doi.org/10.1016/j.synthmet.2014.05.017 (2014).