Abstract
The inhibitory activity of some substituted N-arylpyrroles on aluminium corrosion in hydrochloric acid was studied in relation to inhibitor concentration, using potentiodynamic and impedance spectroscopy techniques. All investigated compounds were found to act as cathodic-type inhibitors and inhibition was ascribed to the adsorption of inhibitor onto the electrode surface. The inhibiting efficiency of the additives depended on the inductive power of the groups attached to the benzene and/or pyrrole ring. The carbaldehyde group showed better inhibiting power due to additional condensation on the electrode surface. The impedance results analysed in terms of the polarization resistance showed that the EIS technique can be successfully applied in the determination of corrosion resistance in systems where the corrosion kinetics are not simple.
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References
M. Pourbaix, in ‘Atlas of Electrochemical Equilibria in Aqueous Solutions’ (Pergamon Press, New York, 1966).
G. Schmitt, Br. Corros. J. 19 (1984) 165.
T. Zhao and G. Mu, Corros. Sci. 41 (1999) 1937.
R.L. Cook, Jr and S.R. Taylor, Corrosion 56 (2000) 321.
E. Khamis and M. Atea, Corrosion 50 (1994) 106.
L. Garrigues, N. Pebere and F. Dabosi, Electrochim. Acta 41 (1996) 1209.
S.S. Mahmoud and G.A. El-Mahdy, Corrosion 53 (1997) 437.
A.S. Fouda, M.N. Moussa, F.I. Taha and A.I. El Neanea, Corros.Sci. 26 (1986) 719.
M. Metikoš-Hukovic, R. Babic and Z. Grubac J. Appl. Electrochem. 28 (1998) 433.
R. Babic, M. Metikoš-Hukovic, S. Omanovic, Z. Grubac and S. Brinic, Br. Corros. J. 30 (1995) 288.
M. Metikoš-Hukovic, R. Babic, Z. Grubac and S. Brinić, J. Appl.Electrochem. 24 (1994) 325.
M. Metikoš-Hukovic, R. Babic, Z. Grubac and S. Brinic, Electrochem. 24 (1994) 772.
E. Khamis, B.A. Abd El-Nabey, M. Shaban, A. El-Sharnoby and G.E. Thomson, in Proceedings of the 7th European Symposium on ‘Corrosion Inhibitors’, Ann. Univ. Ferrara, N.S., Sez. V, Suppl. N.9 (1990), p. 1173.
M.S. Abdel-Aal, M.Th. Makhlof and A.A. Hermas, in op. cit [13], N.S., Sez. V, Suppl. N. 9 (1990), p. 1143.
G. Trabanelli, in F. Mansfield(Ed.), ‘Corrosion Mechanisms’, (Marcel Dekker, New York, 1987), chapter 3.
M. Metikoš-Huković, Z. Grubac and E. Stupniš ek-Lisac, Corrosion 50 (1994) 146.
E. Stupniš ek-Lisac and M. Metikoš-Huković, Br. Corros. J. 28 (1993) 74.
E. Stupniš ek-Lisac, M. Metikoš-Huković, D. Lenćié, J. Vorkapić-Furać and K. Berković, Corrosion 48 (1992) 924.
J. Vorkapić-Furać, M. Mintas, T. Burgemeister and A. Mannschreck, J. Chem. Soc. Perkin Trans. 2 (1989) 713.
A.K. Vijh, J. Phys. Chem. 73 (1969) 506.
R.E. Mayer, J. Electrochem. Soc. 113 (1966) 1158.
C. Monticelli, G. Brunoro and G. Trabanelli, in op.cit. [13], N.S., Sez. V, Suppl. N. 9 (1990), p. 1125.
E.J. Lee and S.I. Pyun, Corros. Sci. 37 (1995) 157.
C.M.A. Brett, Corros. Sci. 33 (1992) 203.
C.M.A. Brett, J. Appl. Electrochem. 20 (1990) 1000.
J.H. Wit and H.J.W. Lenderink, Electrochim. Acta 41 (1996) 1111.
J.W. Lenderink, M. Linden and J.H. Wit and Electrochim. Acta 38 (1993) 1989.
S.E. Frers, M.M. Stefenel, C. Mayer and T. Chierchie, J. Appl.Electrochem. 20 (1990) 996.
J.B. Bessone, D.R. Salinas, C. Mayer, M. Ebert and W.J. Lorenz, Electrochim. Acta 37 (1992) 2283.
J.B. Bessone, C. Mayer, K. Jutner and W.J. Lorenz, Electrochim.Acta 28 (1983) 171.
J.H. Wit, C. Wijenberg and C. Crevecoeur, J. Electrochem. Soc. 126 (1979) 779.
G.T. Burstein and R.J. Cinderey, Corros. Sci. 32 (1991) 1195.
R.J. Cinderey and G.T. Burstein, Corros. Sci. 33 (1992) 475, 493, 499.
A. Frichet, P. Gimenez and M. Keddam, Electrochim. Acta 38 (1993) 1957.
K. Jutner, Electrochim. Acta 35 (1990) 1501.
E. Kalman, B. Varhegyi, I. Felhosi, F.H. Karman and A. Shaban, J. Electrochem. Soc. 141 (1994) 3357.
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Metikoš-Huković, M., Babić, R. & Grubač, Z. The study of aluminium corrosion in acidic solution with nontoxic inhibitors. Journal of Applied Electrochemistry 32, 35–41 (2002). https://doi.org/10.1023/A:1014265407060
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DOI: https://doi.org/10.1023/A:1014265407060