CORROSION PROTECTION ABILITY OF POLYPYRROLE COATED MILD STEEL IN BURIED SAND

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Published: 2025-08-29
DOI: https://doi.org/10.46281/bjmsr.v10i6.2509
Keywords:
Electrodeposition, Pore Free, Inhibitor, Adherent, High Efficiency

Main Article Content

Sanjay Singh
Amrit Campus and PhD Scholar, Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal
https://orcid.org/0000-0001-9405-6889
Shova Neupane
Postdoctoral Researcher, Department of Mechanical and Electrical Engineering, University of Southern Denmark, Denmark
https://orcid.org/0000-0002-3692-5123
Nabin Karki
Associate Professor, Bhaktapur Multiple Campus, Tribhuvan University, Bhaktapur, Nepal
https://orcid.org/0000-0003-3858-776X
Dipak Kumar Gupta
Assistant Professor, Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal
https://orcid.org/0000-0001-6010-9495
Amar Prasad Yadav
Professor, Central Department of Chemistry, TU and Vice-Chancellor, Rajarshi Janak University, Janakpurdham, Nepal
https://orcid.org/0000-0002-8592-4856

Abstract

Corrosion prevention is a global issue.  One way to reduce metal corrosion is by applying polymer coatings. Corrosion prevention increasingly involves the use of polypyrrole (PPy) coatings, which significantly reduce corrosion rates and provide anodic protection.  The purpose of this study was to deposit PPy on mild steel (MS) from 0.4 M pyrrole in 0.1 M sodium potassium (Na-K tartrate) by cyclic voltammetry (CV). This study employed electrodeposition of PPy on MS by CV and explored its corrosion protection performance in the buried sand medium containing 0.1 M NaCl and 0.1 M H2SO4 by the potentiodynamic polarization (PDP) method. The results revealed that with an increase in the number of cycles, the CV showed that the PPy layer formed gradually and covered the MS surface. The oxidation peak vanished after the first cycle, and the current increased with the increasing cycles. The synthesized PPy coating was analyzed by a scanning electron microscope (SEM), which revealed a compact coating layer with cauliflower-like morphology.  It was also examined using an energy-dispersive X-ray spectrometer (EDX), which confirmed the presence of carbon, nitrogen, and oxygen elements. The open-circuit potential (OCP) remained constant over time, resulting in a stable film. The corrosion potential also showed a slight change compared to both media. The significant findings of this study were that the PPy coating behaved as a mixed inhibitor in both media, and the corrosion inhibition efficacy of the PPy coating was approximately 99% in H2SO4 and 98% in NaCl, with good adhesion.


JEL Classification Codes: L6, L69.

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Issue

Vol. 10 No. 6 (2025): Continuous Publication

Section

Research Paper/Theoretical Paper/Review Paper/Short Communication Paper
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This work is licensed under a Creative Commons Attribution 4.0 International License.

Author Biographies

Sanjay Singh, Amrit Campus and PhD Scholar, Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal

Sanjay Singh is currently Ph D scholar at Central Department of Chemistry, Tribhuvan University,  Kirtipur, Kathmandu, Nepal. His areas of research interest are corrosion and electrochemistry. He has published articles in renowned international and national journals.

Shova Neupane, Postdoctoral Researcher, Department of Mechanical and Electrical Engineering, University of Southern Denmark, Denmark

Shova Neupane has expertise in Corrosion research, Bio-nanointerfaces, Biosensing, electrolytic and thin film capacitors, and state-of-the-art experimental techniques. She has published more than five dozen articles in renowned international and national journals.

Nabin Karki, Associate Professor, Bhaktapur Multiple Campus, Tribhuvan University, Bhaktapur, Nepal

Nabin Karki received PhD from Tribhuvan University, Nepal. He is an associate Professor at Bhaktapur Multiple Campus, Tribhuvan University, Bhaktapur, Nepal. His areas of research interest are corrosion, green inhibitors, and electrochemistry. He has published more than a dozen articles in renowned international and national journals.

Dipak Kumar Gupta, Assistant Professor, Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal

Dipak Kumar Gupta received a PhD in chemistry from Tribhuvan University. He is an Assistant Professor at the Central Department of Chemistry, Tribhuvan University. His research areas of interest are electrochemistry, corrosion, polymer coatings, and supercapacitors. He has published extensively in many renowned international and national journals.

Amar Prasad Yadav, Professor, Central Department of Chemistry, TU and Vice-Chancellor, Rajarshi Janak University, Janakpurdham, Nepal

Amar Prasad Yadav is currently Vice-Chancellor of Rajarshi Janak University (RJU), Janakpurdham, and a Professor of Chemistry at Tribhuvan University. He received a Doctorate in engineering with a major in electrochemistry and corrosion from the Tokyo Institute of Technology, Japan, and a Post-doctorate from the same institute. He also worked as a Research Associate at the Max-Planck Institute for Iron Research, Düsseldorf, Germany. His research areas of interest are corrosion inhibitors and green coatings, electrochemical polymerization and composite coatings, atmospheric corrosion, and energy storage supercapacitors. He has published more than 100 articles in renowned international and national journals.

How to Cite

Singh, S. ., Neupane, S., Karki, N. ., Gupta, D. K., & Yadav, A. P. . (2025). CORROSION PROTECTION ABILITY OF POLYPYRROLE COATED MILD STEEL IN BURIED SAND. Bangladesh Journal of Multidisciplinary Scientific Research, 10(6), 36-45. https://doi.org/10.46281/bjmsr.v10i6.2509
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References

Aguiar, M. F. D., Borges, R. A., Rocha, M. F. B., Bouchonneau, N., Melo, C. P. D., Oliveira, H. P. D., & Alves, K. G. B. (2023). Synthesis and characterization of polypyrrole/Fe3O4 nanocomposites: a promising material against carbon steel corrosion. Materials Research, 26(1), e20220549. https://doi.org/10.1590/1980-5373-mr-2022-0549

Alsingery, R. M. D. (2017). Polypyrrole as a perfect corrosion inhibitor for mild steel in hydrochloric acid solution. International Journal of ChemTech Research, 10(9), 1058-1065.

Ananda Kumar, S., Shree Meenakshi, K., Sankaranarayanan, T. S. N., & Srikanth, S. (2008). Corrosion-resistant behaviour of PANI–metal bilayer coatings. Progress in Organic Coatings, 62(3), 285-292. https://doi.org/10.1016/j.porgcoat.2008.01.005

Bazzaoui, M., Martins, J. I., Bazzaoui, E. A., Reis, T. C., & Martins, L. (2004). Pyrrole electropolymerization on copper and brass in a single-step process from aqueous solution. Journal of Applied Electrochemistry, 34, 815–822. https://doi.org/10.1023/B:JACH.0000035610.10869.43

Beck, F., Michaelis, R., Schloten, F., & Zinger, B. (1994). Filmforming electropolymerization of pyrrole on iron in aqueous oxalic acid. Electrochimica Acta, 39(2), 229-234. https://doi.org/10.1016/0013-4686(94)80058-8

Beck, F., & Oberst, M. (1987). Electrodeposition and cycling of polypyrrole. Makromolekulare Chemie. Macromolecular Symposia, 8(1) 97–125. https://doi.org/10.1002/masy.19870080110

Cheung, K. M., Bloor, D., & Stevens, G. C. (1988). Characterization of polypyrrole electropolymerized on different electrodes. Polymer, 29(9), 1709-1717. https://doi.org/10.1016/0032-3861(88)90288-1

Chhipa, S. M., Sharma, S., & Bagha, A. K. (2024). Recent development in polymer coating to prevent corrosion in metals: A review. Materials Today: Proceedings. https://doi.org/10.1016/j.matpr.2024.09.001

Dalmoro, V., Cedron, S., Azambuja, D. S., & Castagno, K. R. L. (2019). Polypyrrole Film Doped with Corrosion-Inhibitors Electropolymerized on AA 1100. Materials Research, 22(suppl 1), e20180919. https://doi.org/10.1590/1980-5373-mr-2018-0919

De Bruyne, A., Delplancke, J. L., & Winand, R. (1998). Comparison between polypyrrole films obtained on mild steel by electropolymerization from oxalic acid and sodium sulphate aqueous solutions. Surface and Coatings Technology, 99(1), 118–124. https://doi.org/10.1016/S0257-8972(97)00417-9

Diaz, A. F., & Castillo, J. I. (1980). A polymer electrode with variable conductivity: polypyrrole. Journal of the Chemical Society, Chemical Communications, (9), 397-398. https://doi.org/10.1039/c39800000397

El-Shazly, A. H., & Wazzan, A. A. (2012). Using polypyrrole coating for improving the corrosion resistance of steel buried in corrosive mediums. International Journal of Electrochemical Science, 7(3), 1946-1957. https://doi.org/10.1016/S1452-3981(23)13853-3

Ferreira, C. A., Aeiyach, S., Aaron, J. J., & Lacaze, P. C. (1996). Electrosynthesis of strongly adherent polypyrrole coatings on iron and mild steel in aqueous media. Electrochimica Acta, 41(11–12), 1801–1809. https://doi.org/10.1016/0013-4686(95)00498-X

Ferreira, C. A., Aeiyach, S., Delamar, M., & Lacaze, P. C. (1990). Electropolymerization of pyrrole on iron electrodes: Influence of solvent and electrolyte on the nature of the deposits. Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 284(2), 351–369. https://doi.org/10.1016/0022-0728(90)85044-6

González, M. B., & Saidman, S. B. (2011). Electrodeposition of polypyrrole on 316L stainless steel for corrosion prevention. Corrosion Science, 53(1), 276-282. https://doi.org/10.1016/j.corsci.2010.09.021

Gvozdenovi, M., Jugovi, B., Jambrec, D., Stevanovi, J., & Grgur, B. (2012). Application of polyaniline in corrosion protection of metals. Zaštita Materijala, 53(4), 353-360.

Hammache, H., Makhloufi, L., & Saidani, B. (2003). Corrosion protection of iron by polypyrrole modified by copper using the cementation process. Corrosion Science, 45(9), 2031–2042. https://doi.org/10.1016/S0010-938X(03)00043-X

Hamtak, M., Barzegar Khaleghi, M. H., & Sajjadnejad, M. (2023). Optimized synthesis of polyaniline-polypyrrole composite for corrosion protection of carbon steel. Materials Chemistry and Mechanics, 1(1) 58-67. https://doi.org/10.22034/mcm.2023.1.5

He, J., Wang, Y., Qian, Y., Guo, J., Lu, J., & Yang, W. (2024). Surface modification of ultra-high-molecular-weight polyethylene and applications: A review. Polymers, 16(23), 3431. https://doi.org/10.3390/polym16233431

Herrasti, P., Kulak, A. N., Bavykin, D. V., De Léon, C. P., Zekonyte, J., & Walsh, F. C. (2011). Electrodeposition of polypyrrole–titanate nanotube composites coatings and their corrosion resistance. Electrochimica Acta, 56(3), 1323-1328. https://doi.org/10.1016/j.electacta.2010.09.094

Hulser, P., & Beck, F. (1990). Electrodeposition of polypyrrole layers on aluminium from aqueous electrolytes. Journal of Applied Electrochemistry, 20, 596–605. https://doi.org/10.1007/BF01008869

Iroh, J. O., & Su, W. (2000). Corrosion performance of polypyrrole coating applied to low carbon steel by an electrochemical process. Electrochimica Acta, 46(1), 15–24. https://doi.org/10.1016/S0013-4686(00)00519-3

Iroh, J. O., & Wood, G. A. (1996). Physical and chemical properties of polypyrrole-carbon fiber interphases formed by aqueous electro synthesis. Journal of Applied Polymer Science, 62(10), 1761–1769. https://doi.org/10.1002/(SICI)1097-4628(19961205)62:10<1761::AID-APP30>3.0.CO;2-1

Jafari, Y., Ghoreishi, S. M., & Shabani-Nooshabadi, M. (2016). Electrochemical deposition and characterization of polyaniline-graphene nanocomposite films and its corrosion protection properties. Journal of Polymer Research, 23, 91. https://doi.org/10.1007/s10965-016-0983-8

Jaouhari, A. E., Filotás, D., Kiss, A., Laabd, M., Bazzaoui, E. A., Nagy, L. G., Nagy, G., Albourine, A., Martins, J. I., Wang, R. J., & Bazzaoui, M. (2016). SECM investigation of electrochemically synthesized polypyrrole from aqueous medium. Journal of Applied Electrochemistry, 46, 1199–1209. https://doi.org/10.1007/s10800-016-1002-9

Jiang, L., Syed, J. A., Gao, Y., Zhang, Q., Zhao, J., Lu, H., & Meng, X. (2017). Electropolymerization of camphorsulfonic acid doped conductive polypyrrole anticorrosive coating for 304SS bipolar plates. Applied Surface Science, 426, 87–98. https://doi.org/10.1016/j.apsusc.2017.07.077

Jiang, X., Chen, J., Yang, Y., Lv, Y., Ren, Y., Li, W., & Li, C. (2020). Corrosion protection of copper current collector of lithium-ion batteries by doped polypyrrole coatings. International Journal of Electrochemical Science, 15, 2667–2676. https://doi.org/10.20964/2020.03.15

Kumar, A. (2023). Role of conducting polymers in corrosion protection. World Journal of Advanced Research and Reviews, 17(2), 045–047. https://doi.org/10.30574/wjarr.2023.17.2.0238

Li, W. (2018). Electrodeposition of PANI/MWCNT coatings on stainless steel and their corrosion protection performances. International Journal of Electrochemical Science, 13(2), 1367-1375. https://doi.org/10.20964/2018.02.31

Li, X., & Zhitomirsky, I. (2013). Electrodeposition of polypyrrole–carbon nanotube composites for electrochemical supercapacitors. Journal of Power Sources, 221, 49–56. https://doi.org/10.1016/j.jpowsour.2012.08.017

Lin, M.-C., Wei, Z., Wang, R., & Zhang, X. (2025). Influence of sulfonic acid doping during polypyrrole electrodeposition on the corrosion protection for AA2024-T3. Advanced Composites and Hybrid Materials, 8, 50. https://doi.org/10.1007/s42114-024-01139-3

Liu, B., Zhang, Z., Wan, J., & Liu, S. (2017). Enhanced corrosion protection of polypyrrole coatings on carbon steel via electrodeposition. International Journal of Electrochemical Science, 12(2), 994–1003. https://doi.org/10.20964/2017.02.20

Mahato, N., & Cho, M. H. (2016). Graphene integrated polyaniline nanostructured composite coating for protecting steels from corrosion: Synthesis, characterization, and protection mechanism of the coating material in acidic environment. Construction and Building Materials, 115, 618–633. https://doi.org/10.1016/j.conbuildmat.2016.04.073

Martins, J. I., Bazzaoui, M., Reis, T. C., Costa, S. C., Nunes, M. C., Martins, L., & Bazzaoui, E. A. (2009). The effect of pH on the pyrrole electropolymerization on iron in malate aqueous solutions. Progress in Organic Coatings, 65(1), 62–70. https://doi.org/10.1016/j.porgcoat.2008.09.011

Mirzaee, M., Kianpour, E., Rashidi, A., Rahimi, A., Pourhashem, S., Duan, J., Iravani, D., & Gohari, M. S. (2024). Construction of a high-performance anticorrosion epoxy coating in the presence of poly(aniline-co-pyrrole) nanospheres. Reactive and Functional Polymers, 194, 105794. https://doi.org/10.1016/j.reactfunctpolym.2023.105794

Mollahosseini, A., & Noroozian, E. (2009). Electrodeposition of a highly adherent and thermally stable polypyrrole coating on steel from aqueous polyphosphate solution. Synthetic Metals, 159(13), 1247–1254. https://doi.org/10.1016/j.synthmet.2009.02.015

Pawar, P., Gaikawad, A. B., & Patil, P. P. (2006). Electrochemical synthesis of corrosion protective polyaniline coatings on mild steel from aqueous salicylate medium. Science and Technology of Advanced Materials, 7(7), 732-744. https://doi.org/10.1016/j.stam.2006.09.014

Rahman, S. U., & Ba-Shammakh, M. S. (2004). Thermal effects on the process of electropolymerization of pyrrole on mild steel. Synthetic Metals, 140(2–3), 207–223. https://doi.org/10.1016/S0379-6779(03)00369-2

Rajyalakshmi, T., Pasha, A., Khasim, S., Lakshmi, M., Murugendrappa, M. V., & Badi, N. (2020). Enhanced charge transport and corrosion protection properties of polyaniline–carbon nanotube composite coatings on mild steel. Journal of Electronic Materials, 49, 341–352. https://doi.org/10.1007/s11664-019-07783-6

Schirmeisen, M., & Beck, F. (1989). Electrocoating of iron and other metals with polypyrrole. Journal of Applied Electrochemistry, 19, 401–409. https://doi.org/10.1007/BF01015243

Shabani-Nooshabadi, M., Allahyary, E., & Jafari, Y. (2018). Electrosynthesis of poly (ortho-phenetidine) coatings on steel and investigation of their corrosion protection properties. Protection of Metals and Physical Chemistry of Surfaces, 54, 104–112. https://doi.org/10.1134/S2070205118010276

Shabani-Nooshabadi, M., & Karimian-Taheri, F. (2015). Electrosynthesis of a polyaniline/zeolite nanocomposite coating on copper in a three-step process and the effect of current density on its corrosion protection performance. RSC Advances, 5(117), 96601–96610. https://doi.org/10.1039/C5RA14333K

Stejskal, J. (2015). Polymers of phenylenediamines. Progress in Polymer Science, 41, 1–31. https://doi.org/10.1016/j.progpolymsci.2014.10.007

Troch-Nagels, G., Winand, R., Weymeersch, A., & Renard, L. (1992). Electron conducting organic coating of mild steel by electropolymerization. Journal of Applied Electrochemistry, 22, 756–764. https://doi.org/10.1007/BF01027506

Truncali, A., Laxminarayan, T., Rajagopalan, N., Weinell, C. E., Kiil, S., & Johansson, M. (2024). Epoxidized technical Kraft lignin as a particulate resin component for high-performance anticorrosive coatings. Journal of Coatings Technology and Research, 21, 1875–1891. https://doi.org/10.1007/s11998-023-00899-9

Zhao, X., Liu, X., Fan, B., & Zheng, X. (2022). Optimized anticorrosion of polypyrrole coating by inverted-electrode strategy: experimental and molecular dynamics investigations. Polymers, 14(7), 1356. https://doi.org/10.3390/polym14071356

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