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Grape Pomace Extract as Green Vapor Phase Corrosion Inhibitor

Viktoria Vorobyova1, Olena Chygyrynets’1, Margarita Skiba2, Inna Trus1, Svitlana Frolenkova1
Affiliation: 
1 National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», 37, Peremogy Ave., 03056 Kyiv, Ukraine 2 Ukrainian State Chemical-Engineering University, 8, Gagarina Ave., 49005 Dnipro, Ukraine corrosionlife@gmail.com
DOI: 
https://doi.org/10.23939/chcht12.03.410
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Keywords:

Abstract: 
The inhibition effect of the grape pomace extract during the early stage of steel corrosion under adsorbed thin electrolyte layers was investigated. The present study was carried out to identify the components present in the 2-propanol grape pomace extract by GC-MS analysis. Gravimetric, electrochemical impedance spectroscopy, potentiodynamic polarization, scanning electron microscopy, and FTIR techniques were used to study the corrosion inhibitive. Polarization measurements have indicated that these green inhibitors acted through mixed type inhibition. SEM studies have evidenced the formation of a protective film over metal surface while FTIR supported by molecular modelling has proved that this shielding effect was caused by aldehydes particularly 2-phenylacetaldehyde and 3,7-dimethylocta-2,6-dienal.
References: 

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