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The effect of electrolytes on the coating of polyaniline on mild steel by electrochemical methods and its corrosion behavior
Gupta, Dipak Kumar1,2; Neupane, Shova1,4; Singh, Sanjay1; Karki, Nabin3; Yadav, Amar Prasad1,5
Corresponding AuthorNeupane, Shova(shova_n@yahoo.com) ; Yadav, Amar Prasad(amar2y@yahoo.com)
2021-03-01
Source PublicationPROGRESS IN ORGANIC COATINGS
ISSN0300-9440
Volume152Pages:10
AbstractPolyaniline (PANI) is extensively researched as a corrosion protection coating for mild steel (MS) against acidic and neutral media. Corrosion inhibition performance of PANI coating on MS depends on the electrolytic solution employed for polymerization. In this study, the electropolymerization of aniline onto MS using sodium potassium tartrate (Na-K tartrate) and benzoic acid in the alcohol-water (BAW) medium is reported. The composition of BAW system was optimized and used for electropolymerization of aniline for the first time. The results showed the formation of a passive yet electm-conductive layer before the polymerization initiated. A compact layer with a fine structured PANI coating in both media was obtained. Cyclic voltammetry (CV) produced a stable PANI coating without showing anodic current in the cathodic scan. The concentration of aniline and electrolytes were optimized for better coating conditions. The prepared PANI coating was characterized by Fourier-transform infrared (FTIR) spectroscopy, Ultraviolet-visible (UV-vis) spectroscopy, Scanning electron microscope (SEM) in combination with energy dispersion spectrometer (EDX) and X-ray diffractometer (XRD). The results of PANI coating in Na-K tartrate and BAW medium are compared with a standard PANI coating prepared in oxalic acid medium. The inhibition efficiencies of PANI coating obtained in Na-K tartrate and BAW were estimated to be 82.5 % and 99.99 %, respectively in 0.1 M NaCl solution.
KeywordSodium potassium tartrate Electropolymerization Mild steel Polyaniline Corrosion protection
Funding Organizationcenter for Co-operation in Science and Technology among Developing Societies (CCSTDS), DST, India ; Nepal Academy of Science and Technology (NAST)
DOI10.1016/j.porgcoat.2020.106127
Indexed BySCI
Language英语
Funding Projectcenter for Co-operation in Science and Technology among Developing Societies (CCSTDS), DST, India ; Nepal Academy of Science and Technology (NAST)
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Applied ; Materials Science, Coatings & Films
WOS IDWOS:000618825800002
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/161446
Collection中国科学院金属研究所
Corresponding AuthorNeupane, Shova; Yadav, Amar Prasad
Affiliation1.Tribhuvan Univ, Cent Dept Chem, Kathmandu, Nepal
2.Tribhuvan Univ, Trichandra Multiple Campus, Kathmandu, Nepal
3.Tribhuvan Univ, Bhaktapur Multiple Campus, Bhaktpur, Nepal
4.CNRS, Inst Rech Chim ParisTech, 11 Rue Pierre & Marie Curie, F-75005 Paris, France
5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci SYNL, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Gupta, Dipak Kumar,Neupane, Shova,Singh, Sanjay,et al. The effect of electrolytes on the coating of polyaniline on mild steel by electrochemical methods and its corrosion behavior[J]. PROGRESS IN ORGANIC COATINGS,2021,152:10.
APA Gupta, Dipak Kumar,Neupane, Shova,Singh, Sanjay,Karki, Nabin,&Yadav, Amar Prasad.(2021).The effect of electrolytes on the coating of polyaniline on mild steel by electrochemical methods and its corrosion behavior.PROGRESS IN ORGANIC COATINGS,152,10.
MLA Gupta, Dipak Kumar,et al."The effect of electrolytes on the coating of polyaniline on mild steel by electrochemical methods and its corrosion behavior".PROGRESS IN ORGANIC COATINGS 152(2021):10.
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