Inhibitory effect of Atlas cedar essential oil on the corrosion of steel in 1 m HCl-Reference-Cited by-同舟云学术

Inhibitory effect of Atlas cedar essential oil on the corrosion of steel in 1 m HCl

Published:2018-02-09 Issue:4 Volume:36 Page:373-384
ISSN:2191-0316
Container-title:Corrosion Reviews
language:en
Short-container-title:

Author:

Idouhli Rachid¹,Oukhrib Abdelouahd²,Koumya Yassine¹,Abouelfida Abdesselam¹,Benyaich Abdelaziz¹,Benharref Ahmed²

Affiliation:

1. Physical-Chemistry of Materials and Environment Laboratory , Faculty of Sciences Semlalia , Cadi Ayyad University , Marrakech , Morocco

2. Biomolecular Chemistry, Natural Substances and Reactivity Laboratory , Faculty of Sciences Semlalia , Cadi Ayyad University , Marrakech , Morocco

Abstract

Abstract The inhibition efficiency of Atlas cedar essential oil (ACEO) as a green corrosion inhibitor on steel in 1 m hydrochloric acidic was studied. The effects of temperature and the concentration of the ACEO inhibitor on the inhibition efficiency were studied. Potentiodynamic polarization and electrochemical impedance spectroscopy were used to test the performance of the inhibitor. We found that the inhibition efficiency of ACEO exceeded 88% at 1 g/l at 298 K and increased with increasing concentration. The evaluation of activation and thermodynamic parameters reveals that the organic molecules of cedar essential oil and its fractions act by chemical adsorption on the metal surface. The adsorption of the inhibitor on the surface of steel is in a good agreement with the Langmuir adsorption isotherm. Increasing concentration of the corrosion inhibitor enhances the surface coverage and formation of a protective film.

Publisher

Walter de Gruyter GmbH

Subject

General Materials Science,General Chemical Engineering,General Chemistry

Link

https://www.degruyter.com/document/doi/10.1515/corrrev-2017-0076/pdf

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