Journal of Materials Science

, Volume 46, Issue 3, pp 752–758 | Cite as

Corrosion inhibition of aluminum by novel phthalocyanines in hydrochloric acid solution



The corrosion inhibition characteristics of quaternized 1,(4)-tetrakis[(2-mercapto)pyridine]phthalocyanine (I) and 2,3-octakis[(2-mercapto)pyridine] phthalocyanine (II) on aluminum in 0.1 M HCl solution has been studied by means of potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The maximum inhibition efficiency was obtained for compound I with two-electrochemical techniques applied. Langmuir isotherm fits well the experimental data. The inhibition efficiency increases with increase in the phthalocyanine concentration, but decreases with an increase in temperature. The phthalocyanines act predominately as cathodic inhibitor.


Phthalocyanine Electrochemical Impedance Spectroscopy Inhibition Efficiency Potentiodynamic Polarization Corrosion Current Density 



Thanks to author Devrim Atilla and Mahmut Durmuş for synthesizing phthalocyanines. This project was supported by TÜBITAK (project no. MAG107M476).


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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • O. K. Özdemir
    • 1
  • A. Aytaç
    • 1
    • 2
  • D. Atilla
    • 3
  • M. Durmuş
    • 3
  1. 1.Department of Materials Science and EngineeringGebze Institute of TechnologyGebzeTurkey
  2. 2.Department of Chemistry, Faculty of ScienceGazi UniversityAnkaraTurkey
  3. 3.Department of ChemistryGebze Institute of TechnologyGebzeTurkey

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