@article{MAKHILLJEAS20083913040,
    title = {The Inhibition and Adsorption Processes of L-Cysteine Against the Corrosion of XC 18 Carbon Steel in 2N H<SUB>2</SUB>SO<SUB>4</SUB>},
    journal = {Journal of Engineering and Applied Sciences},
    volume = {3},
    number = {9},
    pages = {688-696},
    year = {2008},
    issn = {1816-949x},
    doi = {jeasci.2008.688.696},
    url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2008.688.696},
    author = {L. Touafri,A. Kadri,A. Khelifa,N. Aimeur and},
    keywords = {L-cysteine,ac impedance,corrosion inhibition,carbon steel,sulphuric acid},
    abstract = {The inhibition effect of L-cysteine as environmentally friendly corrosion inhibitor for XC 18 carbon steel in stirred 2 N sulphuric acid has been investigated by electrochemical techniques. The impedance measurements showed that the inhibition efficiency increased with the increase of inhibitor concentration to reach more than 84% at 500 mg L<SUP>-1</SUP> and indicated that the amino acid act as mixed type inhibitor, while the adsorption followed the Langmuir isotherm. Effect of temperature is also studied in the 30-60°C range. The values of adsorption free energy ( G<SUP>0</SUP><SUB>ads</SUB>) and activation energies (E<SUB>a</SUB>) reveal a physical adsorption of the inhibitor on the steel surface.}
    }