A thermodynamical, electrochemical, theoretical and surface investigation of diheteroaryl thioethers as effective corrosion inhibitors for mild steel in 1 M HCl

Chandrabhan Verma; M. A. Quraishi; Ambrish Singh

doi:10.1016/j.jtice.2015.06.020

A thermodynamical, electrochemical, theoretical and surface investigation of diheteroaryl thioethers as effective corrosion inhibitors for mild steel in 1 M HCl

Chandrabhan Verma
, M. A. Quraishi^*
, Ambrish Singh

^*Corresponding author for this work

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

82 Scopus citations

Abstract

The inhibition effect of three diheteroaryl thioethers (DHATs) namely 5,5'-thiobis (4-phenylthiazol-2amine) (DHAT-1), 4,4'-(5,5'-thiobis(2-aminothiozole-5,4-diyl)) diphenol (DHAT-2) and 4,4'-(5,5'-thiobis(2-aminothiazole-5,4-diyl))bis (benzene-1,3-diol) (DHAT-3) on mild steel corrosion in 1 M HCl was studied by weight loss, electrochemical, scanning electron microscopy (SEM), atomic force microscopy (AFM) and theoretical calculation methods. Among the studied compounds DHAT-3 exhibited maximum inhibition efficiency (η%) of 96.99% at 11.2 × 10^-⁵ mol/L concentration. The potentiodynamic studies revealed that investigated DHATs act as mixed type inhibitors. Adsorption of the DHATs on the mild steel surface in 1 M HCl obeys the Langmuir adsorption isotherm. The results of theoretical calculation, SEM and AFM studies were found to be consistent with the weight loss and electrochemical results.

Original language	English
Pages (from-to)	127-140
Number of pages	14
Journal	Journal of the Taiwan Institute of Chemical Engineers
Volume	58
DOIs	https://doi.org/10.1016/j.jtice.2015.06.020
State	Published - 1 Jan 2016
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 Taiwan Institute of Chemical Engineers.

Keywords

Acid solution
EIS
Mild steel
Quantum chemical calculation
SEM/AFM

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

Access to Document

10.1016/j.jtice.2015.06.020

Cite this

@article{1ddb845e12ff499cbd4899737a8e6336,

title = "A thermodynamical, electrochemical, theoretical and surface investigation of diheteroaryl thioethers as effective corrosion inhibitors for mild steel in 1 M HCl",

abstract = "The inhibition effect of three diheteroaryl thioethers (DHATs) namely 5,5'-thiobis (4-phenylthiazol-2amine) (DHAT-1), 4,4'-(5,5'-thiobis(2-aminothiozole-5,4-diyl)) diphenol (DHAT-2) and 4,4'-(5,5'-thiobis(2-aminothiazole-5,4-diyl))bis (benzene-1,3-diol) (DHAT-3) on mild steel corrosion in 1 M HCl was studied by weight loss, electrochemical, scanning electron microscopy (SEM), atomic force microscopy (AFM) and theoretical calculation methods. Among the studied compounds DHAT-3 exhibited maximum inhibition efficiency (η\%) of 96.99\% at 11.2 × 10-5 mol/L concentration. The potentiodynamic studies revealed that investigated DHATs act as mixed type inhibitors. Adsorption of the DHATs on the mild steel surface in 1 M HCl obeys the Langmuir adsorption isotherm. The results of theoretical calculation, SEM and AFM studies were found to be consistent with the weight loss and electrochemical results.",

keywords = "Acid solution, EIS, Mild steel, Quantum chemical calculation, SEM/AFM",

author = "Chandrabhan Verma and Quraishi, \{M. A.\} and Ambrish Singh",

note = "Publisher Copyright: {\textcopyright} 2015 Taiwan Institute of Chemical Engineers.",

year = "2016",

month = jan,

day = "1",

doi = "10.1016/j.jtice.2015.06.020",

language = "English",

volume = "58",

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A thermodynamical, electrochemical, theoretical and surface investigation of diheteroaryl thioethers as effective corrosion inhibitors for mild steel in 1 M HCl. / Verma, Chandrabhan; Quraishi, M. A.; Singh, Ambrish.
In: Journal of the Taiwan Institute of Chemical Engineers, Vol. 58, 01.01.2016, p. 127-140.

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

TY - JOUR

T1 - A thermodynamical, electrochemical, theoretical and surface investigation of diheteroaryl thioethers as effective corrosion inhibitors for mild steel in 1 M HCl

AU - Verma, Chandrabhan

AU - Quraishi, M. A.

AU - Singh, Ambrish

PY - 2016/1/1

Y1 - 2016/1/1

N2 - The inhibition effect of three diheteroaryl thioethers (DHATs) namely 5,5'-thiobis (4-phenylthiazol-2amine) (DHAT-1), 4,4'-(5,5'-thiobis(2-aminothiozole-5,4-diyl)) diphenol (DHAT-2) and 4,4'-(5,5'-thiobis(2-aminothiazole-5,4-diyl))bis (benzene-1,3-diol) (DHAT-3) on mild steel corrosion in 1 M HCl was studied by weight loss, electrochemical, scanning electron microscopy (SEM), atomic force microscopy (AFM) and theoretical calculation methods. Among the studied compounds DHAT-3 exhibited maximum inhibition efficiency (η%) of 96.99% at 11.2 × 10-5 mol/L concentration. The potentiodynamic studies revealed that investigated DHATs act as mixed type inhibitors. Adsorption of the DHATs on the mild steel surface in 1 M HCl obeys the Langmuir adsorption isotherm. The results of theoretical calculation, SEM and AFM studies were found to be consistent with the weight loss and electrochemical results.

AB - The inhibition effect of three diheteroaryl thioethers (DHATs) namely 5,5'-thiobis (4-phenylthiazol-2amine) (DHAT-1), 4,4'-(5,5'-thiobis(2-aminothiozole-5,4-diyl)) diphenol (DHAT-2) and 4,4'-(5,5'-thiobis(2-aminothiazole-5,4-diyl))bis (benzene-1,3-diol) (DHAT-3) on mild steel corrosion in 1 M HCl was studied by weight loss, electrochemical, scanning electron microscopy (SEM), atomic force microscopy (AFM) and theoretical calculation methods. Among the studied compounds DHAT-3 exhibited maximum inhibition efficiency (η%) of 96.99% at 11.2 × 10-5 mol/L concentration. The potentiodynamic studies revealed that investigated DHATs act as mixed type inhibitors. Adsorption of the DHATs on the mild steel surface in 1 M HCl obeys the Langmuir adsorption isotherm. The results of theoretical calculation, SEM and AFM studies were found to be consistent with the weight loss and electrochemical results.

KW - Acid solution

KW - EIS

KW - Mild steel

KW - Quantum chemical calculation

KW - SEM/AFM

UR - https://www.scopus.com/pages/publications/84953836014

U2 - 10.1016/j.jtice.2015.06.020

DO - 10.1016/j.jtice.2015.06.020

M3 - Article

AN - SCOPUS:84953836014

SN - 1876-1070

VL - 58

SP - 127

EP - 140

JO - Journal of the Taiwan Institute of Chemical Engineers

JF - Journal of the Taiwan Institute of Chemical Engineers

ER -

A thermodynamical, electrochemical, theoretical and surface investigation of diheteroaryl thioethers as effective corrosion inhibitors for mild steel in 1 M HCl

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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