Electrosynthesis, Characterization and Corrosion Inhibition Study of DBSA-doped Polyaniline Coating on 310 Stainless Steel

Document Type : Research Article


Department of Analytical Chemistry, Faculty of Chemistry, University of Kashan, Kashan, I.R. IRAN


The synthesis of polyaniline doped with dodecylbenzene sulphonic acid (Pani-DBSA) coatings on 310 stainless steel (310 SS) surfaces has been investigated by using the galvanostatic method. The synthesized coatings were characterized by Fourier Transform Infrared Spectroscopy (FT-IR), UV-Visible absorption spectrometry and Scanning Electron Microscopy (SEM).The anticorrosion performances of Pani-DBSA coatings were investigated in 5% NaCl solution by the potentiodynamic polarization technique and Electrochemical Impedance Spectroscopy (EIS). The corrosion rate of Pani-DBSA coated 310 SS was found 30 times lower than bare 310 SSand potential corrosion increased from -0.84 V versus Ag/AgCl for uncoated 310 SS to -0.71 V versus Ag/AgCl for Pani-DBSA coated 310 SS electrodes. Electrochemical measurements indicate that Pani-DBSA coated have good inhibiting properties with a mean efficiency of ~96% at 5 mA cm-2 current density applied to 310 SS corrosion in chloride media. The results of this study clearly ascertain that the Pani-DBSA has an outstanding potential to protect 310 SS against corrosion in a chloride environment.


Main Subjects

[1] Olad A., Rasouli H., Enhanced Corrosion Protective Coating Based on Conducting Polyaniline/Zinc Nanocomposite, J. Appl. Poly. Sci., 115: 2221-7 (2010).
[3] Lu H., Zhou Y., Vongehr S., Hu K., Meng X., Electropolymerization of PANI Coating in Nitric Acid for Corrosion Protection of 430 SS, Synt. Meta., 161: 1368-76(2001).
[4] Eftekhari A., Yazdani B., Morphological Effects of Ni Nanostructures on Electropolymerization of Aniline, J. Appli. Poly. Sci., 122: 1579-86 (2011).
[6] Mert B.D., Solmaz R., Kardaş G., Yazıcı B., Copper/ polypyrrole Multilayer Coating for 7075 Aluminum AlloyProtection, Prog. Org. Coat., 72: 748-54 (2011).
[8] Ozyilmaz A.T., Akdag A., Karahan I.H., Ozyilmaz G., Electrochemical Synthesis of Polyaniline Films on Zinc-Cobalt Alloy Deposited Carbon Steel Surface in Sodium Oxalate, Prog. Org. Coat., 77: 872-9 (2014).
[9] Ozyilmaz A.T., Akdag A., Karahan I.H., Ozyilmaz G., The Influence of Polyaniline (PANI) Coating on Corrosion Behaviour of Zinc–Cobalt Coated Carbon Steel Electrode, Prog. Org. Coat.,76: 993-7 (2013).
[10] Gupta G., Birbilis N., Cook A., Khanna A., Polyaniline-Lignosulfonate/Epoxy Coating for Corrosion Protection of AA2024-T3, Corr. Sci., 67: 256-67 (2013).
[11] Zhang Y., Shao Y., Zhang T., Meng G., Wang F., High Corrosion Protection of a Polyaniline/Organophilic Montmorillonite Coating for Magnesium Alloys, Prog. Org. Coat., 76: 804-11 (2013).
[12] Shabani‐Nooshabadi M., Mollahoseiny M., Jafari Y., Electropolymerized Coatings of Polyaniline on Copper by Using the Galvanostatic Method and Their Corrosion Protection Performance in HCl Medium, Surf. Inter. Anal., 46: 472-9 (2014).
[13] Wu G., More K.L., Johnston C.M., Zelenay P., High-Performance Electrocatalysts for Oxygen Reduction Derived from Polyaniline, Iron, and Cobalt, Science., 332: 443-7 (2011).
[14] Hung W.I., Hung C.B., Chang Y.H., Dai J.K., Li Y., He H., Synthesis and Electroactive Properties of Poly (Amidoamine) Dendrimers with an Aniline Pentamer Shell, J. Mat. Chem., 21: 4581-7 (2011).
[15] Huang T.C., Su Y.A., Yeh T.C., Huang H.Y., Wu C.P., Huang K.Y., Advanced Anticorrosive Coatings Prepared from Electroactive Epoxy–SiO2 Hybrid Nanocomposite Materials, Electrochim. Acta., 56: 6142-9(2011).
[16] Hermas A.E.A., Salam M.A., Al-Juaid S.S., In Situ Electrochemical Preparation of Multi-Walled Carbon Nanotubes/Polyaniline Composite on the Stainless Steel, Prog. Org. Coat., 76: 1810-3 (2013).
[17] Li Y., Zhang H., Wang X., Li J., Wang F., Growth Kinetics of Oxide Films at the Polyaniline/Mild Steel Interface, Corro. Sci., 53: 4044-9 (2011).
[19] Thakur V.K., Ding G., Ma J., Lee P.S., Lu X., Hybrid Materials and Polymer Electrolytes for Electrochromic Device Applications, Adv. Mat., 24: 4071-96 (2012).
[20] Jia W., Su L., Lei Y., Pt Nanoflower/Polyaniline Composite Nanofibers Based Urea Biosensor. Biosen. Bioelec., 30:158-64 (2011).
[21] Kim T.G., Shin H., Lim D.W., Biomimetic Scaffolds for Tissue Engineering, Advan. Fun. Mat., 22: 2446-68 (2012).
[22] Cheng F., Liang J., Tao Z., Chen J., Functional Materials for Rechargeable Batteries, Advan. Mat., 23:1695-715 (2011).
[23] Cao Y., Xiao L., Sushko M.L., Wang W., Schwenzer B., Xiao J., Sodium Ion Insertion in Hollow Carbon Nanowires for Battery Applications, Nano. lett., 12: 3783-7(2012).
[24] Yuan L., Xiao X., Ding T., Zhong J., Zhang X., Shen Y., Paper‐Based Supercapacitors for Self‐Powered Nanosystems, Angew. Chem., 124: 5018-22( 2012).
[26] Chang C.M., Weng C.J., Chien C.M., Chuang T.L., Lee T.Y., Yeh J.M., Polyaniline/Carbon Nanotube Nanocomposite Electrodes with Biomimetic Hierarchical Structure for Supercapacitors, J. Mat. Chem. A., 1: 14719-28 (2013).
[27] Yang X., Li B., Wang H., Hou B., Anticorrosion Performance of Polyaniline Nanostructures on Mild Steel, Prog. Org. Coat., 69: 267-71 (2010).
[29] Diniz F., De Andrade G., Martins C., De Azevedo W., A Comparative Study of Epoxy and Polyurethane Based Coatings Containing Polyaniline-DBSA Pigments for Corrosion Protection on Mild Steel, Prog. Org. Coat., 76: 912-6 (2013).
[32] Ganash A., Al-Nowaiser F., Al-Thabaiti S., Hermas A., Protection of Stainless Steel by the Electrodeposition of Polyaniline/poly (o-phenylenediamine) Composite Layers, J. Sol. Sta. Electrochem., 17: 849-60 (2013).
[33] Sathiyanarayanan S., Karpakam V., Kamaraj K., Muthukrishnan S., Venkatachari G., Sulphonate Doped Polyaniline Containing Coatings for Corrosion Protection of Iron, Surf. Coat. Techn., 204: 1426-31(2010).
[34] Ali Fathima Sabirneeza A., Subhashini S., A Novel Water‐Soluble, Conducting Polymer Composite for Mild Steel Acid Corrosion Inhibition, J. Appl. Poly. Sci., 127: 3084-92 (2013).
[36] Jafari Y., Ghoreishi S.M., Shabani-Nooshabadi M., Electrochemical Deposition and Characterization of Polyaniline-Graphene Nanocomposite Films and Its Corrosion Protection Properties, J. Poly. Rese., 23: 1-13 (2016).
[37] Zhang X., Yan X., He Q., Wei H., Long J., Guo J., Electrically Conductive Polypropylene Nanocomposites with Negative Permittivity at Low Carbon Nanotube Loading Levels., ACS. Appl. Mate. Interf., 7: 6125-38 (2015).
[40] Huang T.C., Yeh T.C., Huang H.Y., Ji W.F., Chou Y.C., Hung W.I., Electrochemical Studies on Aniline-Pentamer-Based Electroactive Polyimide Coating: Corrosion Protection and Electrochromic Properties, Electrochim. Acta., 56: 10151-8 (2011).
[41] Ghoreishi S., Shabani-Nooshabadi M., Behpour M., Jafari Y., Electrochemical Synthesis of Poly (o-anisidine) and Its Corrosion Studies as a Coating on Aluminum Alloy 3105, Prog. Org. Coat., 74: 502-10 (2012).