Synthesis, characterization and corrosion inhibition efficiency of 2-(6-methylpyridin-2-yl)-1H-imidazo[4,5-f][1,10] phenanthroline on mild steel in sulphuric acid

N. O. Obi-Egbedi; I. B. Obot; A. O. Eseola

doi:10.1016/j.arabjc.2010.10.025

Synthesis, characterization and corrosion inhibition efficiency of 2-(6-methylpyridin-2-yl)-1H-imidazo[4,5-f][1,10] phenanthroline on mild steel in sulphuric acid

N. O. Obi-Egbedi
, I. B. Obot^*
, A. O. Eseola

^*Corresponding author for this work

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

50 Scopus citations

Abstract

Phenanthroline derivative, 2-(6-methylpyridin-2-yl)-1H-imidazo[4,5-f][1,10] phenanthroline (MIP) was synthesized and characterized by elemental analysis, FT-IR, ¹H NMR, ¹³C NMR, and single crystal X-ray diffraction study. MIP was evaluated as corrosion inhibitor for mild steel in 0.5M H₂SO₄ solution using gravimetric and UV-Visible spectrophotometric methods at 303-333K. Results obtained show that MIP acts as inhibitor for mild steel in H₂SO₄ solution. The inhibition efficiency was found to increase with increase in MIP concentration but decreased with temperature. Activation parameters and Gibbs free energy for the adsorption process using statistical physics were calculated and discussed. The UV-Visible absorption spectra of the solution containing the inhibitor after the immersion of mild steel specimen indicate the formation of a MIP-Fe complex.

Original language	English
Pages (from-to)	197-207
Number of pages	11
Journal	Arabian Journal of Chemistry
Volume	7
Issue number	2
DOIs	https://doi.org/10.1016/j.arabjc.2010.10.025
State	Published - Apr 2014
Externally published	Yes

Keywords

Corrosion inhibitors
Mild steel
Phenanthroline derivative
Sulphuric acid
Thermodynamic

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

Access to Document

10.1016/j.arabjc.2010.10.025

Cite this

@article{1a47987e48864156b8e0087bdd15cbf5,

title = "Synthesis, characterization and corrosion inhibition efficiency of 2-(6-methylpyridin-2-yl)-1H-imidazo[4,5-f][1,10] phenanthroline on mild steel in sulphuric acid",

abstract = "Phenanthroline derivative, 2-(6-methylpyridin-2-yl)-1H-imidazo[4,5-f][1,10] phenanthroline (MIP) was synthesized and characterized by elemental analysis, FT-IR, 1H NMR, 13C NMR, and single crystal X-ray diffraction study. MIP was evaluated as corrosion inhibitor for mild steel in 0.5M H2SO4 solution using gravimetric and UV-Visible spectrophotometric methods at 303-333K. Results obtained show that MIP acts as inhibitor for mild steel in H2SO4 solution. The inhibition efficiency was found to increase with increase in MIP concentration but decreased with temperature. Activation parameters and Gibbs free energy for the adsorption process using statistical physics were calculated and discussed. The UV-Visible absorption spectra of the solution containing the inhibitor after the immersion of mild steel specimen indicate the formation of a MIP-Fe complex.",

keywords = "Corrosion inhibitors, Mild steel, Phenanthroline derivative, Sulphuric acid, Thermodynamic",

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

year = "2014",

month = apr,

doi = "10.1016/j.arabjc.2010.10.025",

language = "English",

volume = "7",

pages = "197--207",

journal = "Arabian Journal of Chemistry",

issn = "1878-5352",

number = "2",

}

TY - JOUR

T1 - Synthesis, characterization and corrosion inhibition efficiency of 2-(6-methylpyridin-2-yl)-1H-imidazo[4,5-f][1,10] phenanthroline on mild steel in sulphuric acid

AU - Obi-Egbedi, N. O.

AU - Obot, I. B.

AU - Eseola, A. O.

PY - 2014/4

Y1 - 2014/4

N2 - Phenanthroline derivative, 2-(6-methylpyridin-2-yl)-1H-imidazo[4,5-f][1,10] phenanthroline (MIP) was synthesized and characterized by elemental analysis, FT-IR, 1H NMR, 13C NMR, and single crystal X-ray diffraction study. MIP was evaluated as corrosion inhibitor for mild steel in 0.5M H2SO4 solution using gravimetric and UV-Visible spectrophotometric methods at 303-333K. Results obtained show that MIP acts as inhibitor for mild steel in H2SO4 solution. The inhibition efficiency was found to increase with increase in MIP concentration but decreased with temperature. Activation parameters and Gibbs free energy for the adsorption process using statistical physics were calculated and discussed. The UV-Visible absorption spectra of the solution containing the inhibitor after the immersion of mild steel specimen indicate the formation of a MIP-Fe complex.

AB - Phenanthroline derivative, 2-(6-methylpyridin-2-yl)-1H-imidazo[4,5-f][1,10] phenanthroline (MIP) was synthesized and characterized by elemental analysis, FT-IR, 1H NMR, 13C NMR, and single crystal X-ray diffraction study. MIP was evaluated as corrosion inhibitor for mild steel in 0.5M H2SO4 solution using gravimetric and UV-Visible spectrophotometric methods at 303-333K. Results obtained show that MIP acts as inhibitor for mild steel in H2SO4 solution. The inhibition efficiency was found to increase with increase in MIP concentration but decreased with temperature. Activation parameters and Gibbs free energy for the adsorption process using statistical physics were calculated and discussed. The UV-Visible absorption spectra of the solution containing the inhibitor after the immersion of mild steel specimen indicate the formation of a MIP-Fe complex.

KW - Corrosion inhibitors

KW - Mild steel

KW - Phenanthroline derivative

KW - Sulphuric acid

KW - Thermodynamic

UR - https://www.scopus.com/pages/publications/84897620458

U2 - 10.1016/j.arabjc.2010.10.025

DO - 10.1016/j.arabjc.2010.10.025

M3 - Article

AN - SCOPUS:84897620458

SN - 1878-5352

VL - 7

SP - 197

EP - 207

JO - Arabian Journal of Chemistry

JF - Arabian Journal of Chemistry

IS - 2

ER -

Synthesis, characterization and corrosion inhibition efficiency of 2-(6-methylpyridin-2-yl)-1H-imidazo[4,5-f][1,10] phenanthroline on mild steel in sulphuric acid

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this