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Enhanced corrosion inhibition properties of carboxymethyl hydroxypropyl chitosan for mild steel in 1.0 M HCl solution
Wan, Kai1; Feng, Panpan1,2; Hou, Baorong1; Li, Yantao1
2016
发表期刊RSC ADVANCES
卷号6期号:81页码:77515-77524
文章类型Article
摘要Synthesized carboxymethyl hydroxypropyl chitosan (CHPCS) containing both carboxymethyl and hydroxypropyl groups was investigated as a corrosion inhibitor for mild steel in 1.0 M HCl solution using weight loss, open circuit potential (OCP), potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. It was found that the compound behaved like a mixed-typed corrosion inhibitor that simultaneously inhibited the anodic dissolution and hydrogen evolution reactions. The compound inhibited corrosion at a low concentration and reached an inhibition efficiency of 95.3% in 1000 ppm (by weight). It was also found that the equivalent circuit model of one time constant was used during EIS analysis. The absorption of CHPCS on the metallic surface obeyed the Langmuir isotherm with a negative value of the free energy of adsorption Delta G. Scanning electron microscopy (SEM) was carried out to corroborate the test results. The potential of zero charge revealed that the corrosion inhibition mechanism involved physisorption and chemisorption processes.
DOI10.1039/c6ra12975g
收录类别SCI
语种英语
WOS记录号WOS:000382482200045
引用统计
被引频次:15[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/337002/135897
专题海洋腐蚀与防护研究发展中心
作者单位1.Chinese Acad Sci, Key Lab Marine Environm Corros & Biofouling, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Wan, Kai,Feng, Panpan,Hou, Baorong,et al. Enhanced corrosion inhibition properties of carboxymethyl hydroxypropyl chitosan for mild steel in 1.0 M HCl solution[J]. RSC ADVANCES,2016,6(81):77515-77524.
APA Wan, Kai,Feng, Panpan,Hou, Baorong,&Li, Yantao.(2016).Enhanced corrosion inhibition properties of carboxymethyl hydroxypropyl chitosan for mild steel in 1.0 M HCl solution.RSC ADVANCES,6(81),77515-77524.
MLA Wan, Kai,et al."Enhanced corrosion inhibition properties of carboxymethyl hydroxypropyl chitosan for mild steel in 1.0 M HCl solution".RSC ADVANCES 6.81(2016):77515-77524.
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