Caprylate Salts Based on Amines as Volatile Corrosion Inhibitors for Metallic Zinc: Theoretical and Experimental Studies

Caprylate Salts Based on Amines as Volatile Corrosion Inhibitors for Metallic Zinc: Theoretical and Experimental Studies

The interaction of volatile corrosion inhibitors (VCI), caprylate salt derivatives from amines, with zinc metallic surfaces is assessed by density functional theory (DFT) computer simulations, electrochemical impedance (EIS) measurements and humid chamber tests. The results obtained by the different...

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Bibliographic Details
Main Authors: Marco A. G. Valente, Deiver A. Teixeira, David L. Azevedo, Gustavo T. Feliciano, Assis V. Benedetti, Cecílio S. Fugivara
Format: Article
Language:English
Published: Frontiers Media S.A. 2017-05-01
Series:Frontiers in Chemistry
Subjects:
zinc
EIS
modeling studies
neutral medium inhibitor
Online Access:http://journal.frontiersin.org/article/10.3389/fchem.2017.00032/full
Description
Summary:The interaction of volatile corrosion inhibitors (VCI), caprylate salt derivatives from amines, with zinc metallic surfaces is assessed by density functional theory (DFT) computer simulations, electrochemical impedance (EIS) measurements and humid chamber tests. The results obtained by the different methods were compared, and linear correlations were obtained between theoretical and experimental data. The correlations between experimental and theoretical results showed that the molecular size is the determining factor in the inhibition efficiency. The models used and experimental results indicated that dicyclohexylamine caprylate is the most efficient inhibitor.
ISSN:2296-2646

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