Aryl sulfonamidomethylphosphonates as new class of green corrosion inhibitors for mild steel in 1 M HCl: Electrochemical, surface and quantum chemical investigation

C. B. Verma; A. Singh; G. Pallikonda; M. Chakravarty; M. A. Quraishi; I. Bahadur; E. E. Ebenso

doi:10.1016/j.molliq.2015.06.013

Aryl sulfonamidomethylphosphonates as new class of green corrosion inhibitors for mild steel in 1 M HCl: Electrochemical, surface and quantum chemical investigation

C. B. Verma
, A. Singh
, G. Pallikonda
, M. Chakravarty
, M. A. Quraishi
, I. Bahadur
, E. E. Ebenso^*

^*Corresponding author for this work

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

103 Scopus citations

Abstract

Synthesis and corrosion inhibition property of five aryl sulfonamidomethylphosphonates in 1 M HCl are reported using chemical, electrochemical, scanning electron microscopy (SEM) and quantum chemical calculation methods. Experimental results show that aryl sulfonamidomethylphosphonates are good corrosion inhibitors for mild steel in 1 M HCl and their inhibition efficiency increases with concentration. Potentiodynamic polarization studies show that studied inhibitors act as mixed type and their adsorption on mild steel surface obeys the Langmuir's adsorption isotherm. The thermodynamic (E_a, ΔH^∗, ΔS^∗, ΔG⁰_ads) and quantum chemical parameters were calculated and discussed to describe the mechanism of adsorption.

Original language	English
Pages (from-to)	306-319
Number of pages	14
Journal	Journal of Molecular Liquids
Volume	209
DOIs	https://doi.org/10.1016/j.molliq.2015.06.013
State	Published - 12 Jun 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.

Keywords

AFM
Aryl sulfonamidomethylphosphonates
EIS
Mild steel
Polarization
Quantum chemical calculation
SEM

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Spectroscopy
Physical and Theoretical Chemistry
Materials Chemistry

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10.1016/j.molliq.2015.06.013

Cite this

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title = "Aryl sulfonamidomethylphosphonates as new class of green corrosion inhibitors for mild steel in 1 M HCl: Electrochemical, surface and quantum chemical investigation",

abstract = "Synthesis and corrosion inhibition property of five aryl sulfonamidomethylphosphonates in 1 M HCl are reported using chemical, electrochemical, scanning electron microscopy (SEM) and quantum chemical calculation methods. Experimental results show that aryl sulfonamidomethylphosphonates are good corrosion inhibitors for mild steel in 1 M HCl and their inhibition efficiency increases with concentration. Potentiodynamic polarization studies show that studied inhibitors act as mixed type and their adsorption on mild steel surface obeys the Langmuir's adsorption isotherm. The thermodynamic (Ea, ΔH∗, ΔS∗, ΔG0ads) and quantum chemical parameters were calculated and discussed to describe the mechanism of adsorption.",

keywords = "AFM, Aryl sulfonamidomethylphosphonates, EIS, Mild steel, Polarization, Quantum chemical calculation, SEM",

author = "Verma, \{C. B.\} and A. Singh and G. Pallikonda and M. Chakravarty and Quraishi, \{M. A.\} and I. Bahadur and Ebenso, \{E. E.\}",

year = "2015",

month = jun,

day = "12",

doi = "10.1016/j.molliq.2015.06.013",

language = "English",

volume = "209",

pages = "306--319",

journal = "Journal of Molecular Liquids",

issn = "0167-7322",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Aryl sulfonamidomethylphosphonates as new class of green corrosion inhibitors for mild steel in 1 M HCl

T2 - Electrochemical, surface and quantum chemical investigation

AU - Verma, C. B.

AU - Singh, A.

AU - Pallikonda, G.

AU - Chakravarty, M.

AU - Quraishi, M. A.

AU - Bahadur, I.

AU - Ebenso, E. E.

PY - 2015/6/12

Y1 - 2015/6/12

N2 - Synthesis and corrosion inhibition property of five aryl sulfonamidomethylphosphonates in 1 M HCl are reported using chemical, electrochemical, scanning electron microscopy (SEM) and quantum chemical calculation methods. Experimental results show that aryl sulfonamidomethylphosphonates are good corrosion inhibitors for mild steel in 1 M HCl and their inhibition efficiency increases with concentration. Potentiodynamic polarization studies show that studied inhibitors act as mixed type and their adsorption on mild steel surface obeys the Langmuir's adsorption isotherm. The thermodynamic (Ea, ΔH∗, ΔS∗, ΔG0ads) and quantum chemical parameters were calculated and discussed to describe the mechanism of adsorption.

AB - Synthesis and corrosion inhibition property of five aryl sulfonamidomethylphosphonates in 1 M HCl are reported using chemical, electrochemical, scanning electron microscopy (SEM) and quantum chemical calculation methods. Experimental results show that aryl sulfonamidomethylphosphonates are good corrosion inhibitors for mild steel in 1 M HCl and their inhibition efficiency increases with concentration. Potentiodynamic polarization studies show that studied inhibitors act as mixed type and their adsorption on mild steel surface obeys the Langmuir's adsorption isotherm. The thermodynamic (Ea, ΔH∗, ΔS∗, ΔG0ads) and quantum chemical parameters were calculated and discussed to describe the mechanism of adsorption.

KW - AFM

KW - Aryl sulfonamidomethylphosphonates

KW - EIS

KW - Mild steel

KW - Polarization

KW - Quantum chemical calculation

KW - SEM

UR - https://www.scopus.com/pages/publications/84930939500

U2 - 10.1016/j.molliq.2015.06.013

DO - 10.1016/j.molliq.2015.06.013

M3 - Article

AN - SCOPUS:84930939500

SN - 0167-7322

VL - 209

SP - 306

EP - 319

JO - Journal of Molecular Liquids

JF - Journal of Molecular Liquids

ER -

Aryl sulfonamidomethylphosphonates as new class of green corrosion inhibitors for mild steel in 1 M HCl: Electrochemical, surface and quantum chemical investigation

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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