Artículos de revistas
Experimental and Theoretical Studies of Volatile Corrosion Inhibitors Adsorption on Zinc Electrode
Fecha
2015-03-01Registro en:
Journal of the Brazilian Chemical Society. Sociedade Brasileira de Química, v. 26, n. 3, p. 434-450, 2015.
0103-5053
10.5935/0103-5053.20140296
S0103-50532015000300434
S0103-50532015000300434.pdf
2797127887030838
Autor
Universidade Estadual Paulista (Unesp)
Instituto Federal do Mato Grosso
Universidade Federal do Mato Grosso Instituto de Química
Institución
Resumen
This study evaluates the interaction of volatile corrosion inhibitors (VCIs) of the amino group with the zinc or zinc oxide surface by means of computational calculations using density functional theory (DFT) and comparing with experimental methods such as electrochemical impedance spectroscopy (EIS) and wet chamber tests. The application of these methods allowed indicating the most promising VCI and understanding its mechanism of action. Thus, after the vaporization of VCI molecules, they condense on the surface and form a protective film or a film with oxidizing characteristic, thereby preventing the corrosive action of the chemical species present in the environment.