New coumarin derivative as an eco-friendly inhibitor of corrosion of mild steel in acid medium

Ahmed A. Al-Amiery, Yasameen K Al -Majedy, Abdul Amir H. Kadhum, Abu Bakar Mohamad

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

The anticorrosion ability of a synthesized coumarin, namely 2-(coumarin-4-yloxy)acetohydrazide (EFCI), for mild steel (MS) in 1 M hydrochloric acid solution has been studied using a weight loss method. The effect of temperature on the corrosion rate was investigated, and some thermodynamic parameters were calculated. The results indicated that inhibition efficiencies were enhanced with an increase in concentration of inhibitor and decreased with a rise in temperature. The IE value reaches 94.7% at the highest used concentration of the new eco-friendly inhibitor. The adsorption of inhibitor on MS surface was found to obey a Langmuir adsorption isotherm. Scanning electron microscopy (SEM) was performed on inhibited and uninhibited mild steel samples to characterize the surface. The Density Function theory (DFT) was employed for quantum-chemical calculations such as EHOMO (highest occupied molecular orbital energy), ELUMO (lowest unoccupied molecular orbital energy) and μ (dipole moment), and the obtained results were found to be consistent with the experimental findings. The synthesized inhibitor was characterized by Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopic studies.

Original languageEnglish
Pages (from-to)366-383
Number of pages18
JournalMolecules
Volume20
Issue number1
DOIs
Publication statusPublished - 1 Jan 2015

Fingerprint

Coumarins
Corrosion
Steel
Corrosion inhibitors
inhibitors
Carbon steel
corrosion
steels
Molecular orbitals
acids
Adsorption
Acids
molecular orbitals
Temperature
Hydrochloric Acid
Dipole moment
Fourier Analysis
Corrosion rate
Adsorption isotherms
Thermodynamics

Keywords

  • 4-hydroxycoumarin
  • C-NMR
  • Corrosion inhibitor
  • Weight loss

ASJC Scopus subject areas

  • Organic Chemistry

Cite this

Al-Amiery, A. A., -Majedy, Y. K. A., Kadhum, A. A. H., & Mohamad, A. B. (2015). New coumarin derivative as an eco-friendly inhibitor of corrosion of mild steel in acid medium. Molecules, 20(1), 366-383. https://doi.org/10.3390/molecules20010366

New coumarin derivative as an eco-friendly inhibitor of corrosion of mild steel in acid medium. / Al-Amiery, Ahmed A.; -Majedy, Yasameen K Al; Kadhum, Abdul Amir H.; Mohamad, Abu Bakar.

In: Molecules, Vol. 20, No. 1, 01.01.2015, p. 366-383.

Research output: Contribution to journalArticle

Al-Amiery, AA, -Majedy, YKA, Kadhum, AAH & Mohamad, AB 2015, 'New coumarin derivative as an eco-friendly inhibitor of corrosion of mild steel in acid medium', Molecules, vol. 20, no. 1, pp. 366-383. https://doi.org/10.3390/molecules20010366
Al-Amiery, Ahmed A. ; -Majedy, Yasameen K Al ; Kadhum, Abdul Amir H. ; Mohamad, Abu Bakar. / New coumarin derivative as an eco-friendly inhibitor of corrosion of mild steel in acid medium. In: Molecules. 2015 ; Vol. 20, No. 1. pp. 366-383.
@article{4d8d8ed82a7245bbb8db308caeedfbf4,
title = "New coumarin derivative as an eco-friendly inhibitor of corrosion of mild steel in acid medium",
abstract = "The anticorrosion ability of a synthesized coumarin, namely 2-(coumarin-4-yloxy)acetohydrazide (EFCI), for mild steel (MS) in 1 M hydrochloric acid solution has been studied using a weight loss method. The effect of temperature on the corrosion rate was investigated, and some thermodynamic parameters were calculated. The results indicated that inhibition efficiencies were enhanced with an increase in concentration of inhibitor and decreased with a rise in temperature. The IE value reaches 94.7{\%} at the highest used concentration of the new eco-friendly inhibitor. The adsorption of inhibitor on MS surface was found to obey a Langmuir adsorption isotherm. Scanning electron microscopy (SEM) was performed on inhibited and uninhibited mild steel samples to characterize the surface. The Density Function theory (DFT) was employed for quantum-chemical calculations such as EHOMO (highest occupied molecular orbital energy), ELUMO (lowest unoccupied molecular orbital energy) and μ (dipole moment), and the obtained results were found to be consistent with the experimental findings. The synthesized inhibitor was characterized by Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopic studies.",
keywords = "4-hydroxycoumarin, C-NMR, Corrosion inhibitor, Weight loss",
author = "Al-Amiery, {Ahmed A.} and -Majedy, {Yasameen K Al} and Kadhum, {Abdul Amir H.} and Mohamad, {Abu Bakar}",
year = "2015",
month = "1",
day = "1",
doi = "10.3390/molecules20010366",
language = "English",
volume = "20",
pages = "366--383",
journal = "Molecules",
issn = "1420-3049",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "1",

}

TY - JOUR

T1 - New coumarin derivative as an eco-friendly inhibitor of corrosion of mild steel in acid medium

AU - Al-Amiery, Ahmed A.

AU - -Majedy, Yasameen K Al

AU - Kadhum, Abdul Amir H.

AU - Mohamad, Abu Bakar

PY - 2015/1/1

Y1 - 2015/1/1

N2 - The anticorrosion ability of a synthesized coumarin, namely 2-(coumarin-4-yloxy)acetohydrazide (EFCI), for mild steel (MS) in 1 M hydrochloric acid solution has been studied using a weight loss method. The effect of temperature on the corrosion rate was investigated, and some thermodynamic parameters were calculated. The results indicated that inhibition efficiencies were enhanced with an increase in concentration of inhibitor and decreased with a rise in temperature. The IE value reaches 94.7% at the highest used concentration of the new eco-friendly inhibitor. The adsorption of inhibitor on MS surface was found to obey a Langmuir adsorption isotherm. Scanning electron microscopy (SEM) was performed on inhibited and uninhibited mild steel samples to characterize the surface. The Density Function theory (DFT) was employed for quantum-chemical calculations such as EHOMO (highest occupied molecular orbital energy), ELUMO (lowest unoccupied molecular orbital energy) and μ (dipole moment), and the obtained results were found to be consistent with the experimental findings. The synthesized inhibitor was characterized by Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopic studies.

AB - The anticorrosion ability of a synthesized coumarin, namely 2-(coumarin-4-yloxy)acetohydrazide (EFCI), for mild steel (MS) in 1 M hydrochloric acid solution has been studied using a weight loss method. The effect of temperature on the corrosion rate was investigated, and some thermodynamic parameters were calculated. The results indicated that inhibition efficiencies were enhanced with an increase in concentration of inhibitor and decreased with a rise in temperature. The IE value reaches 94.7% at the highest used concentration of the new eco-friendly inhibitor. The adsorption of inhibitor on MS surface was found to obey a Langmuir adsorption isotherm. Scanning electron microscopy (SEM) was performed on inhibited and uninhibited mild steel samples to characterize the surface. The Density Function theory (DFT) was employed for quantum-chemical calculations such as EHOMO (highest occupied molecular orbital energy), ELUMO (lowest unoccupied molecular orbital energy) and μ (dipole moment), and the obtained results were found to be consistent with the experimental findings. The synthesized inhibitor was characterized by Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopic studies.

KW - 4-hydroxycoumarin

KW - C-NMR

KW - Corrosion inhibitor

KW - Weight loss

UR - http://www.scopus.com/inward/record.url?scp=84921468957&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84921468957&partnerID=8YFLogxK

U2 - 10.3390/molecules20010366

DO - 10.3390/molecules20010366

M3 - Article

C2 - 25551187

AN - SCOPUS:84921468957

VL - 20

SP - 366

EP - 383

JO - Molecules

JF - Molecules

SN - 1420-3049

IS - 1

ER -