Open Journal of Physical Chemistry

Volume 3, Issue 4 (November 2013)

ISSN Print: 2162-1969   ISSN Online: 2162-1977

Google-based Impact Factor: 0.84  Citations  h5-index & Ranking

Electrochemical Corrosion Behavior of Aluminum in Perchloric Acid

HTML  Download Download as PDF (Size: 2295KB)  PP. 177-188  
DOI: 10.4236/ojpc.2013.34022    5,067 Downloads   8,095 Views  


The effects of acetate, citrate, benzoate, tetra-ethylammonium iodide (TEA) and 1,4,8,11 tetra-azacyclo-tetradecane (cyclam) on the corrosion behavior of aluminum in 1 M HClO4 at 40°C were studied by potentiodynamic polarization technique. Acetate, citrate, and benzoate inhibited the corrosion of aluminum and shifted the breakdown potential to positive direction. Cyclam was investigated as a macrocyclic organic inhibitor to the acid corrosion of aluminum. The addition of cyclam to the corroding medium showed a pronounced effect on the anodic but not on the cathodic part of the polarization curve. The addition of TEA to the medium enhanced the corrosion rate and shifted the breakdown potential to more negative value as the concentration increased. The results were discussed on the basis of the adsorption mechanism and the nature of the adsorbed species.

Share and Cite:

F. Mahgoub, "Electrochemical Corrosion Behavior of Aluminum in Perchloric Acid," Open Journal of Physical Chemistry, Vol. 3 No. 4, 2013, pp. 177-188. doi: 10.4236/ojpc.2013.34022.

Cited by

No relevant information.

Copyright © 2021 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.