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Synergistic protective effect of carboxymethyl chitosan and cathodic protection of X70 pipeline steel in seawater
Feng, Panpan1,2; Wan, Kai1; Cai, Guowei1; Yang, Lihui1; Li, Yantao1
2017
发表期刊RSC ADVANCES
卷号7期号:6页码:3419-3427
文章类型Article
摘要This study has investigated corrosion inhibition performance on X70 pipeline steel in seawater using carboxymethyl chitosan (CMCS) and Na2WO4 at a cathodic protection potential of -0.85 V (vs. SCE). The corrosion behaviors were studied using electrochemical methods, scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The results show that the inhibition efficiency increases when the CMCS concentration increases. Polarization curves reveal that CMCS and Na2WO4 exhibit a nice synergy for the corrosion inhibition of X70 pipeline steel in seawater. The inhibition mechanism behind the synergistic protective effect of CMCS and Na2WO4 is assumed to occur via both chemisorption on the steel surface through the active sites in the molecule and physisorption. When combined with cathodic protection, corrosion can be inhibited and calcareous deposits cannot form on the surface.
DOI10.1039/c6ra25310e
收录类别SCI
语种英语
WOS记录号WOS:000393749200046
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/136314
专题海洋腐蚀与防护研究发展中心
作者单位1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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GB/T 7714
Feng, Panpan,Wan, Kai,Cai, Guowei,et al. Synergistic protective effect of carboxymethyl chitosan and cathodic protection of X70 pipeline steel in seawater[J]. RSC ADVANCES,2017,7(6):3419-3427.
APA Feng, Panpan,Wan, Kai,Cai, Guowei,Yang, Lihui,&Li, Yantao.(2017).Synergistic protective effect of carboxymethyl chitosan and cathodic protection of X70 pipeline steel in seawater.RSC ADVANCES,7(6),3419-3427.
MLA Feng, Panpan,et al."Synergistic protective effect of carboxymethyl chitosan and cathodic protection of X70 pipeline steel in seawater".RSC ADVANCES 7.6(2017):3419-3427.
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