Inhibition performance of three naphthyridine derivatives for mild steel corrosion in 1M HCl: Computation and experimental analyses

Chandrabhan Verma; Ahmad A. Sorour; Eno E. Ebenso; M. A. Quraishi

doi:10.1016/j.rinp.2018.06.054

Inhibition performance of three naphthyridine derivatives for mild steel corrosion in 1M HCl: Computation and experimental analyses

Chandrabhan Verma, Ahmad A. Sorour, Eno E. Ebenso^*, M. A. Quraishi

^*Corresponding author for this work

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

33 Scopus citations

Abstract

The influence of three naphthyridines (NTDs) on acidic dissolution of mild steel was evaluated using experimental methods. Protection abilities of the NTDs molecules are increases with their concentrations. Maximum inhibition efficiency of 98.69% was observed for NTD-3 molecule at its 4.11 × 10⁻⁵ mol/L⁻¹ concentration. The inhibition efficiencies of NTDs molecules followed the order: NTD-1 (96.1%) < NTD-2 (97.4%) < NTD-3 (98.7%). Polarization study showed that NTDs acted as mixed type inhibitors and they preferably block the active sites accountable for the corrosion. EIS study suggested that the NTDs inhibit corrosion because of their adsorption at electrolyte/metal interfaces and their adsorption followed Langmuir adsorption isotherm. AFM analysis was adopted to support the adsorption inhibitive behavior of NTDs.

Original language	English
Pages (from-to)	504-511
Number of pages	8
Journal	Results in Physics
Volume	10
DOIs	https://doi.org/10.1016/j.rinp.2018.06.054
State	Published - Sep 2018

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Publisher Copyright:
© 2018 The Authors

Keywords

AFM
Acid inhibitors
Aggressive solution
Electrochemical studies
Mild steel
Naphthyridines

ASJC Scopus subject areas

General Physics and Astronomy

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10.1016/j.rinp.2018.06.054

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@article{0a17509c232e4f389c811d3ed2386be2,

title = "Inhibition performance of three naphthyridine derivatives for mild steel corrosion in 1M HCl: Computation and experimental analyses",

abstract = "The influence of three naphthyridines (NTDs) on acidic dissolution of mild steel was evaluated using experimental methods. Protection abilities of the NTDs molecules are increases with their concentrations. Maximum inhibition efficiency of 98.69% was observed for NTD-3 molecule at its 4.11 × 10−5 mol/L−1 concentration. The inhibition efficiencies of NTDs molecules followed the order: NTD-1 (96.1%) < NTD-2 (97.4%) < NTD-3 (98.7%). Polarization study showed that NTDs acted as mixed type inhibitors and they preferably block the active sites accountable for the corrosion. EIS study suggested that the NTDs inhibit corrosion because of their adsorption at electrolyte/metal interfaces and their adsorption followed Langmuir adsorption isotherm. AFM analysis was adopted to support the adsorption inhibitive behavior of NTDs.",

keywords = "AFM, Acid inhibitors, Aggressive solution, Electrochemical studies, Mild steel, Naphthyridines",

author = "Chandrabhan Verma and Sorour, {Ahmad A.} and Ebenso, {Eno E.} and Quraishi, {M. A.}",

note = "Publisher Copyright: {\textcopyright} 2018 The Authors",

year = "2018",

month = sep,

doi = "10.1016/j.rinp.2018.06.054",

language = "English",

volume = "10",

pages = "504--511",

journal = "Results in Physics",

issn = "2211-3797",

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T1 - Inhibition performance of three naphthyridine derivatives for mild steel corrosion in 1M HCl

T2 - Computation and experimental analyses

AU - Verma, Chandrabhan

AU - Sorour, Ahmad A.

AU - Ebenso, Eno E.

AU - Quraishi, M. A.

PY - 2018/9

Y1 - 2018/9

N2 - The influence of three naphthyridines (NTDs) on acidic dissolution of mild steel was evaluated using experimental methods. Protection abilities of the NTDs molecules are increases with their concentrations. Maximum inhibition efficiency of 98.69% was observed for NTD-3 molecule at its 4.11 × 10−5 mol/L−1 concentration. The inhibition efficiencies of NTDs molecules followed the order: NTD-1 (96.1%) < NTD-2 (97.4%) < NTD-3 (98.7%). Polarization study showed that NTDs acted as mixed type inhibitors and they preferably block the active sites accountable for the corrosion. EIS study suggested that the NTDs inhibit corrosion because of their adsorption at electrolyte/metal interfaces and their adsorption followed Langmuir adsorption isotherm. AFM analysis was adopted to support the adsorption inhibitive behavior of NTDs.

AB - The influence of three naphthyridines (NTDs) on acidic dissolution of mild steel was evaluated using experimental methods. Protection abilities of the NTDs molecules are increases with their concentrations. Maximum inhibition efficiency of 98.69% was observed for NTD-3 molecule at its 4.11 × 10−5 mol/L−1 concentration. The inhibition efficiencies of NTDs molecules followed the order: NTD-1 (96.1%) < NTD-2 (97.4%) < NTD-3 (98.7%). Polarization study showed that NTDs acted as mixed type inhibitors and they preferably block the active sites accountable for the corrosion. EIS study suggested that the NTDs inhibit corrosion because of their adsorption at electrolyte/metal interfaces and their adsorption followed Langmuir adsorption isotherm. AFM analysis was adopted to support the adsorption inhibitive behavior of NTDs.

KW - AFM

KW - Acid inhibitors

KW - Aggressive solution

KW - Electrochemical studies

KW - Mild steel

KW - Naphthyridines

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DO - 10.1016/j.rinp.2018.06.054

M3 - Article

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SN - 2211-3797

VL - 10

SP - 504

EP - 511

JO - Results in Physics

JF - Results in Physics

ER -

Inhibition performance of three naphthyridine derivatives for mild steel corrosion in 1M HCl: Computation and experimental analyses

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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