Assessing the potentials of free base and gallium metalated tertbutylphthalocyanines as aluminium corrosion inhibitorsopen access
- Authors
- Nnaji, Nnaemeka; Sen, Pinar; Openda, Yolande Ikala; Berisha, Avni; Dagdag, O.; Ebenso, Eno E.; Nyokong, Tebello
- Issue Date
- Dec-2023
- Publisher
- ELSEVIER
- Keywords
- Corrosion inhibition; Density functional theoretical calculation; Molecular dynamics and; Tertbutylphthalocyanines
- Citation
- INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, v.18, no.12
- Journal Title
- INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
- Volume
- 18
- Number
- 12
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/89600
- DOI
- 10.1016/j.ijoes.2023.100345
- ISSN
- 1452-3981
- Abstract
- The adsorption behaviors of 2,9,16,23 tetrakis(4-(tert-butyl)phenoxy)phthalocyanine (1) and gallium (III) 2,9,16,24 tetrakis(4-(tert-butyl)phenoxy)phthalocyanine (2) were studied as corrosion inhibitors at the aluminum-HCl solution interface. In addition to weight loss (gravimetric) and electrochemical methods, the study includes measurements utilizing scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and X-ray diffraction. The findings of the characterization show that the inhibitor molecules were well adsorbed on the aluminum surface, supporting the gravimetric and electrochemical measurements. At 28 degrees C and the greatest inhibitor concentration (10 mu M), the potentiodynamic polarization method gave inhibition efficiency values of 95.2% (1) and 89.1% (2). These compounds showed good corrosion inhibition efficiencies as mixedtype corrosion inhibitors, but they also had a significant anodic character. Theoretical simulations produced conclusions that closely match experimental data.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - ETC > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.