Synthesis, characterization and anticorrosion behaviour of a novel hydrazide derivative on mild steel in hydrochloric acid medium

P. Preethi Kumari; Prakash Shetty; Suma A. Rao; Dhanya Sunil; T. Vishwanath

doi:10.1007/s12034-019-1995-x

Synthesis, characterization and anticorrosion behaviour of a novel hydrazide derivative on mild steel in hydrochloric acid medium

P. Preethi Kumari, Prakash Shetty^*, Suma A. Rao, Dhanya Sunil, T. Vishwanath

^*Corresponding author for this work

Department of Chemistry, Manipal Institute of Technology, Manipal

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

16 Citations (Scopus)

Abstract

A novel corrosion inhibitor, namely N^′-[(4-methyl-1H-imidazole-5-yl)methylidene]-2-(naphthalen-2-yloxy) acetohydrazide (IMNH), has been synthesized and characterized by ¹H NMR and FTIR spectroscopic techniques. The anticorrosion behaviour of IMNH on mild steel in 1 M hydrochloric acid (HCl) medium was studied by potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) techniques. The percentage inhibition efficiency of IMNH increased with increase in its concentration and temperature. The adsorption of IMNH followed chemisorption and obeyed Langmuir’s adsorption isotherm. PDP study revealed that IMNH functioned as a mixed type inhibitor. Theoretical study of the adsorption behaviour of this inhibitor was carried out by quantum chemical calculations using density functional theory (DFT). Scanning electron microscopy (SEM), atomic force microscopy (AFM) and energy-dispersive X-ray spectroscopy (EDX) studies confirmed the formation of a protective film of IMNH on the mild steel surface.

Original language	English
Article number	46
Journal	Bulletin of Materials Science
Volume	43
Issue number	1
DOIs	https://doi.org/10.1007/s12034-019-1995-x
Publication status	Published - 01-12-2020

All Science Journal Classification (ASJC) codes

General Materials Science
Mechanics of Materials

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title = "Synthesis, characterization and anticorrosion behaviour of a novel hydrazide derivative on mild steel in hydrochloric acid medium",

abstract = "A novel corrosion inhibitor, namely N′-[(4-methyl-1H-imidazole-5-yl)methylidene]-2-(naphthalen-2-yloxy) acetohydrazide (IMNH), has been synthesized and characterized by 1H NMR and FTIR spectroscopic techniques. The anticorrosion behaviour of IMNH on mild steel in 1 M hydrochloric acid (HCl) medium was studied by potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) techniques. The percentage inhibition efficiency of IMNH increased with increase in its concentration and temperature. The adsorption of IMNH followed chemisorption and obeyed Langmuir{\textquoteright}s adsorption isotherm. PDP study revealed that IMNH functioned as a mixed type inhibitor. Theoretical study of the adsorption behaviour of this inhibitor was carried out by quantum chemical calculations using density functional theory (DFT). Scanning electron microscopy (SEM), atomic force microscopy (AFM) and energy-dispersive X-ray spectroscopy (EDX) studies confirmed the formation of a protective film of IMNH on the mild steel surface.",

author = "Kumari, {P. Preethi} and Prakash Shetty and Rao, {Suma A.} and Dhanya Sunil and T. Vishwanath",

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doi = "10.1007/s12034-019-1995-x",

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AU - Kumari, P. Preethi

AU - Shetty, Prakash

AU - Rao, Suma A.

AU - Sunil, Dhanya

AU - Vishwanath, T.

PY - 2020/12/1

Y1 - 2020/12/1

N2 - A novel corrosion inhibitor, namely N′-[(4-methyl-1H-imidazole-5-yl)methylidene]-2-(naphthalen-2-yloxy) acetohydrazide (IMNH), has been synthesized and characterized by 1H NMR and FTIR spectroscopic techniques. The anticorrosion behaviour of IMNH on mild steel in 1 M hydrochloric acid (HCl) medium was studied by potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) techniques. The percentage inhibition efficiency of IMNH increased with increase in its concentration and temperature. The adsorption of IMNH followed chemisorption and obeyed Langmuir’s adsorption isotherm. PDP study revealed that IMNH functioned as a mixed type inhibitor. Theoretical study of the adsorption behaviour of this inhibitor was carried out by quantum chemical calculations using density functional theory (DFT). Scanning electron microscopy (SEM), atomic force microscopy (AFM) and energy-dispersive X-ray spectroscopy (EDX) studies confirmed the formation of a protective film of IMNH on the mild steel surface.

AB - A novel corrosion inhibitor, namely N′-[(4-methyl-1H-imidazole-5-yl)methylidene]-2-(naphthalen-2-yloxy) acetohydrazide (IMNH), has been synthesized and characterized by 1H NMR and FTIR spectroscopic techniques. The anticorrosion behaviour of IMNH on mild steel in 1 M hydrochloric acid (HCl) medium was studied by potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) techniques. The percentage inhibition efficiency of IMNH increased with increase in its concentration and temperature. The adsorption of IMNH followed chemisorption and obeyed Langmuir’s adsorption isotherm. PDP study revealed that IMNH functioned as a mixed type inhibitor. Theoretical study of the adsorption behaviour of this inhibitor was carried out by quantum chemical calculations using density functional theory (DFT). Scanning electron microscopy (SEM), atomic force microscopy (AFM) and energy-dispersive X-ray spectroscopy (EDX) studies confirmed the formation of a protective film of IMNH on the mild steel surface.

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Synthesis, characterization and anticorrosion behaviour of a novel hydrazide derivative on mild steel in hydrochloric acid medium

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