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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
Source PublicationACTA CHIMICA SINICA
Volume69Issue:4Pages:483-491
SubtypeArticle
AbstractThe 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.
KeywordCorrosion Weight Loss Potentiodynamic Polarization Electrochemical Impedance Spectroscopy (Eis) Scanning Electron Microscopy (Sem) Adsorption
Indexed BySCI
Language英语
WOS IDWOS:000288468600019
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/32934
Collection海洋环境腐蚀与与生物污损重点实验室
Affiliation1.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
Recommended Citation
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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