Acenaphtho [1,2-b] quinoxaline as a novel corrosion inhibitor for mild steel in 0.5 M H2SO4

I. B. Obot; N. O. Obi-Egbedi; N. W. Odozi

doi:10.1016/j.corsci.2009.11.013

Acenaphtho [1,2-b] quinoxaline as a novel corrosion inhibitor for mild steel in 0.5 M H₂SO₄

I. B. Obot^*, N. O. Obi-Egbedi, N. W. Odozi

^*Corresponding author for this work

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

166 Scopus citations

Abstract

Acenaphtho [1,2-b] quinoxaline (AQ) was tested as a novel corrosion inhibitor for mild steel in 0.5 M H₂SO₄ solution using chemical technique at 30 °C. AQ acts as an effective inhibitor for mild steel in acidic medium. Inhibition efficiency increased with increasing concentration of AQ. Langmuir isotherm was found to provide an accurate description of the adsorption behaviour of the investigated compound. A zero-order kinetics relationship with respect to mild steel was obtained with and without AQ from the kinetic treatment of the data. DFT study gave further insight into the mechanism of inhibition action of AQ.

Original language	English
Pages (from-to)	923-926
Number of pages	4
Journal	Corrosion Science
Volume	52
Issue number	3
DOIs	https://doi.org/10.1016/j.corsci.2009.11.013
State	Published - Mar 2010
Externally published	Yes

Keywords

A. Acenaphtho [1,2-b] quinoxaline
B. Corrosion inhibitors
C. Density functional theory (DFT)
D. Mild steel

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science

Access to Document

10.1016/j.corsci.2009.11.013

Cite this

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title = "Acenaphtho [1,2-b] quinoxaline as a novel corrosion inhibitor for mild steel in 0.5 M H2SO4",

abstract = "Acenaphtho [1,2-b] quinoxaline (AQ) was tested as a novel corrosion inhibitor for mild steel in 0.5 M H2SO4 solution using chemical technique at 30 °C. AQ acts as an effective inhibitor for mild steel in acidic medium. Inhibition efficiency increased with increasing concentration of AQ. Langmuir isotherm was found to provide an accurate description of the adsorption behaviour of the investigated compound. A zero-order kinetics relationship with respect to mild steel was obtained with and without AQ from the kinetic treatment of the data. DFT study gave further insight into the mechanism of inhibition action of AQ.",

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author = "Obot, \{I. B.\} and Obi-Egbedi, \{N. O.\} and Odozi, \{N. W.\}",

year = "2010",

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language = "English",

volume = "52",

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journal = "Corrosion Science",

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T1 - Acenaphtho [1,2-b] quinoxaline as a novel corrosion inhibitor for mild steel in 0.5 M H2SO4

AU - Obot, I. B.

AU - Obi-Egbedi, N. O.

AU - Odozi, N. W.

PY - 2010/3

Y1 - 2010/3

N2 - Acenaphtho [1,2-b] quinoxaline (AQ) was tested as a novel corrosion inhibitor for mild steel in 0.5 M H2SO4 solution using chemical technique at 30 °C. AQ acts as an effective inhibitor for mild steel in acidic medium. Inhibition efficiency increased with increasing concentration of AQ. Langmuir isotherm was found to provide an accurate description of the adsorption behaviour of the investigated compound. A zero-order kinetics relationship with respect to mild steel was obtained with and without AQ from the kinetic treatment of the data. DFT study gave further insight into the mechanism of inhibition action of AQ.

AB - Acenaphtho [1,2-b] quinoxaline (AQ) was tested as a novel corrosion inhibitor for mild steel in 0.5 M H2SO4 solution using chemical technique at 30 °C. AQ acts as an effective inhibitor for mild steel in acidic medium. Inhibition efficiency increased with increasing concentration of AQ. Langmuir isotherm was found to provide an accurate description of the adsorption behaviour of the investigated compound. A zero-order kinetics relationship with respect to mild steel was obtained with and without AQ from the kinetic treatment of the data. DFT study gave further insight into the mechanism of inhibition action of AQ.

KW - A. Acenaphtho [1,2-b] quinoxaline

KW - B. Corrosion inhibitors

KW - C. Density functional theory (DFT)

KW - D. Mild steel

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DO - 10.1016/j.corsci.2009.11.013

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VL - 52

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