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Corrosion Inhibition and Mechanisms Study on Pipemidic Acid, Levofloxacin and Ciprofloxacin for Mild Steel in 0.5 mol/L H2SO4
Pang Xuehui1; Zhang Yuxuan1,2; Zhang Jie1; Xie Jiandong4; Hou Baorong3
2011-02-28
发表期刊ACTA CHIMICA SINICA
卷号69期号:4页码:483-491
文章类型Article
摘要The corrosion inhibition and mechanisms of pipemidic acid (8-ethyl-5-oxo-5,8-dihydro-2-(1-piperazinyl)pyrido[2,3-d]pyrimidine-6-carboxylic acid), levofloxacin) [( +/- )-9-fluoro-2,3-dihydro-3methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylic acid] and ciprofloxacin [1-cyclopropy1-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-3-quinoline carboxylic acid) for mild steel in 0.5 mol/L H2SO4 was studied using weight loss experiment, potentiodynamic polarization curves, electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM) at 303 K. The results obtained from weight loss experiment showed the inhibition efficiency was significantly increased with:the inhibitor concentration increasing. Electrochemical corrosion experiment revealed the inhibition process was related to the inhibitor molecules covering on the metal surface, which mainly inhibited cathode hydrogen evolution reaction. The inhibitor molecules on the mild steel surface obeyed Langmuir isothermal model and involved physical adsorption and chemical adsorption at 303 K. Scanning electron microscopy observations showed the three inhibitors played a significant protective effect on metal corrosion. All the test results concluded that ciprofloxacin inhibition performance was best under the same conditions.
关键词Corrosion Weight Loss Potentiodynamic Polarization Electrochemical Impedance Spectroscopy (Eis) Scanning Electron Microscopy (Sem) Adsorption
收录类别SCI
语种英语
WOS记录号WOS:000288468600019
引用统计
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/32934
专题海洋腐蚀与防护研究发展中心
作者单位1.Univ Jinan, Sch Chem & Engn, Jinan 250022, Peoples R China
2.Beijing Forestry Univ, Sch Environm Sci & Engn, Beijing 100083, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
4.Shandong Jianzhu Univ, Inst Design & Res, Jinan 250013, Peoples R China
推荐引用方式
GB/T 7714
Pang Xuehui,Zhang Yuxuan,Zhang Jie,et al. Corrosion Inhibition and Mechanisms Study on Pipemidic Acid, Levofloxacin and Ciprofloxacin for Mild Steel in 0.5 mol/L H2SO4[J]. ACTA CHIMICA SINICA,2011,69(4):483-491.
APA Pang Xuehui,Zhang Yuxuan,Zhang Jie,Xie Jiandong,&Hou Baorong.(2011).Corrosion Inhibition and Mechanisms Study on Pipemidic Acid, Levofloxacin and Ciprofloxacin for Mild Steel in 0.5 mol/L H2SO4.ACTA CHIMICA SINICA,69(4),483-491.
MLA Pang Xuehui,et al."Corrosion Inhibition and Mechanisms Study on Pipemidic Acid, Levofloxacin and Ciprofloxacin for Mild Steel in 0.5 mol/L H2SO4".ACTA CHIMICA SINICA 69.4(2011):483-491.
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