Abstract
The efficiency of Laurus nobilis leaves’ extract as a corrosion inhibitor for mild steel in acidic medium (1 M H2SO4) was investigated by use of the electrochemical techniques potentiodynamic polarization, electrochemical impedance spectroscopy, and polarization resistance measurements. According to the experimental results, L. nobilis extract acts as a good corrosion inhibitor. In the presence of the inhibitor, corrosion potential shifted toward a more negative value than for the blank solution. Inhibitor efficiency increased with increasing inhibitor concentration, as expected. According to the potentiodynamic polarization results the corrosion of mild steel increased with increasing temperature both in the presence and absence of the inhibitor. The activation energy (E a) of the corrosion process was calculated from the variation of corrosion current density with temperature.
Similar content being viewed by others
References
F. Bentiss, F. Gassama, D. Barbry, L. Gengembre, H. Vezin, M. Lagrenée, M. Traisnel, Appl. Surf. Sci. 252, 2684 (2006)
K.F. Khaled, N. Hackerma, Electrochim. Acta 48, 2715 (2003)
M.A. Quraishi, R. Sardar, Mater. Chem. Phys. 78, 425 (2003)
M. Hosseini, F. Stijn, L. Mertens, M. Ghorbani, M.R. Arshadi, Mater. Chem. Phys. 78, 800 (2003)
G. Avci, Mater. Chem. Phys. 112, 234 (2008)
E. Stupnišek-Lisac, S. Podbršček, T. Sorić, J. Appl. Electrochem. 24, 779 (1994)
E.E. Ebenso, Mater. Chem. Phys. 79, 58 (2003)
M. Scendo, Corros. Sci. 50, 1584 (2008)
P.B. Raja, M.G. Sethuraman, Mater. Lett. 62, 113 (2008)
F. Conforti, G. Statti, D. Uzunov, F. Menichini, Biol. Pharm. Bull. 29, 2056 (2006)
A. Yurt, A. Balaban, S.U. Kandemir, G. Bereket, B. Erk, Mater. Chem. Phys. 85, 420 (2004)
R. Solmaz, E. Altunbaş, G. Kardaş, Mater. Chem. Phy. 125, 796 (2011)
E. Navvaro-Flores, S. Chong, Z. Omanovic, J. Mol. Catal. A Chem. 226, 179 (2005)
W.Li. Qiao, C.He. Pei, B. Hou, Electrochim. Acta 52, 6386 (2007)
O.L. Riggs Jr., Corrosion inhibitors, 2nd edn. (C.C Nathan Houston TX), (1973)
G. Moretti, F. Guidi, Corros. Sci. 44, 1995 (2002)
F.M. Donahue, K.J. Nobe, Electrochem. Soc. 112, 886 (1965)
E.E. Oquzie, Mater. Chem. Phys 99, 441 (2006)
Acknowledgment
The author is grateful to Mersin University research fund for providing financial support.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Gülşen, A. Corrosion inhibition of mild steel by Laurus nobilis leaves extract as green inhibitor. Res Chem Intermed 38, 1311–1321 (2012). https://doi.org/10.1007/s11164-011-0451-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11164-011-0451-3