The Performance of Zinc Sacrificial Anode in Simulating Marine Fouling Environment

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	The Performance of Zinc Sacrificial Anode in Simulating Marine Fouling Environment
	Zhang, Jie1 ; Sun, Caixia 1,2; Yu, Zhenhua 3; Cheng, Jianbo 2; Li, Weizuo 2; Duan, Jizhou 1
刊名	INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
	2014-10-01
卷号	9 期号:10 页码:5712-5721
关键词	zinc sacrificial anode marine biofoulings macro-fouling self-discharge localised corrosion
通讯作者	Zhang, J (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China.
英文摘要	Zinc sacrificial anodes with excellent merits are widely used in the marine cathodic protection of steel structures being suffered marine biofoulings. It is important to study the property of zinc anodes in marine fouling environment. However, it is very difficult to study the effect of macro-fouling on the corrosion of zinc anodes in the real ocean environment, and it is also almost impossible for the people to do this by culturing the macro-fouling in lab. In this work, the corrosion behaviour and performance of zinc anode in simulated marine fouling environment was discussed using electrochemical impedance spectroscopy, self-discharge, scanning electron microscopy and simulating methods. The results indicated that marine foulings on the surface had some protective effect on the anti-corrosion performance of anodes in the early attachment stage of fouling organisms. The corrosion rate of zinc anode was decreased sharply at the first attachment stage of the fouling organisms. The zinc sacrificial anode still possesses high current efficiency though covered with biofoulings, but its potential varies dramatically in simulated biofouling environment. Surface analysis revealed that localised corrosion occurred on the surface of zinc sacrificial anodes coated with the powder of barnacles and oysters. The experiment result shows that it is very useful and simple for us to study the effect of macro-fouling on the corrosion of zinc anodes in lab by simulating the coating of the powder of barnacles and oysters, which is consistent with the actual marine results.
学科主题	Electrochemistry
收录类别	SCI
语种	英语
WOS记录号	WOS:000345261700027
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/23894]
专题	海洋研究所_海洋腐蚀与防护研究发展中心海洋研究所_实验海洋生物学重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Yantai Univ, Coll Chem & Chem Engn, Yantai 264005, Peoples R China 3.Qingdao Ctr Dis Control & Prevent, Qingdao 266033, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jie,Sun, Caixia,Yu, Zhenhua,et al. The Performance of Zinc Sacrificial Anode in Simulating Marine Fouling Environment[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2014,9(10):5712-5721.
APA	Zhang, Jie,Sun, Caixia,Yu, Zhenhua,Cheng, Jianbo,Li, Weizuo,&Duan, Jizhou.(2014).The Performance of Zinc Sacrificial Anode in Simulating Marine Fouling Environment.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,9(10),5712-5721.
MLA	Zhang, Jie,et al."The Performance of Zinc Sacrificial Anode in Simulating Marine Fouling Environment".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 9.10(2014):5712-5721.