Corrosion inhibition of mild steel by Calotropis procera leaves extract in a CO2 saturated sodium chloride solution

Taleb Ibrahim; Elron Gomes; Ime B. Obot; Mustafa Khamis; Mohamed Abou Zour

doi:10.1080/01694243.2016.1185229

Corrosion inhibition of mild steel by Calotropis procera leaves extract in a CO₂ saturated sodium chloride solution

Taleb Ibrahim^*, Elron Gomes, Ime B. Obot, Mustafa Khamis, Mohamed Abou Zour

^*Corresponding author for this work

Interdisciplinary Research Center for Advanced Materials

Research output: Contribution to journal › Article › peer-review

51 Scopus citations

Abstract

The Calotropisprocera leaves extract (CPLE) was investigated as a corrosion inhibitor for mild steel in a CO₂-saturated 3.5 wt% NaCl solution using various electrochemical techniques. The results show that the CPLE is an effective inhibitor with inhibition efficiency of 80% using 50 ppm. Polarization studies show that the CPLE acts as a mixed inhibitor, and the adsorption of CPLE follows Langmuir adsorption isotherm. Molecular dynamics simulations reveal that the presence of N, O in the CPLE as well as π-electron systems coupled with high adsorption energies of interaction of the CPLE with steel are responsible for corrosion inhibition performance.

Original language	English
Pages (from-to)	2523-2543
Number of pages	21
Journal	Journal of Adhesion Science and Technology
Volume	30
Issue number	23
DOIs	https://doi.org/10.1080/01694243.2016.1185229
State	Published - 1 Dec 2016

Bibliographical note

Publisher Copyright:
© 2016 Informa UK Limited, trading as Taylor & Francis Group.

Keywords

Steel corrosion
adsorption, polarization
electrochemical techniques
molecular simulation
natural corrosion inhibitor

ASJC Scopus subject areas

General Chemistry
Mechanics of Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

Access to Document

10.1080/01694243.2016.1185229

Cite this

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title = "Corrosion inhibition of mild steel by Calotropis procera leaves extract in a CO2 saturated sodium chloride solution",

abstract = "The Calotropisprocera leaves extract (CPLE) was investigated as a corrosion inhibitor for mild steel in a CO2-saturated 3.5 wt\% NaCl solution using various electrochemical techniques. The results show that the CPLE is an effective inhibitor with inhibition efficiency of 80\% using 50 ppm. Polarization studies show that the CPLE acts as a mixed inhibitor, and the adsorption of CPLE follows Langmuir adsorption isotherm. Molecular dynamics simulations reveal that the presence of N, O in the CPLE as well as π-electron systems coupled with high adsorption energies of interaction of the CPLE with steel are responsible for corrosion inhibition performance.",

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AU - Ibrahim, Taleb

AU - Gomes, Elron

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AU - Khamis, Mustafa

AU - Abou Zour, Mohamed

PY - 2016/12/1

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AB - The Calotropisprocera leaves extract (CPLE) was investigated as a corrosion inhibitor for mild steel in a CO2-saturated 3.5 wt% NaCl solution using various electrochemical techniques. The results show that the CPLE is an effective inhibitor with inhibition efficiency of 80% using 50 ppm. Polarization studies show that the CPLE acts as a mixed inhibitor, and the adsorption of CPLE follows Langmuir adsorption isotherm. Molecular dynamics simulations reveal that the presence of N, O in the CPLE as well as π-electron systems coupled with high adsorption energies of interaction of the CPLE with steel are responsible for corrosion inhibition performance.

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KW - electrochemical techniques

KW - molecular simulation

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