Electrochemical and thermodynamic investigation of some soluble terpolymers as effective corrosion inhibitors for mild steel in 1M hydrochloric acid solution

Chandra Bhan Verma; M. A. Quraishi; E. E. Ebenso

doi:10.1016/s1452-3981(23)13315-3

Electrochemical and thermodynamic investigation of some soluble terpolymers as effective corrosion inhibitors for mild steel in 1M hydrochloric acid solution

Chandra Bhan Verma
, M. A. Quraishi^*
, E. E. Ebenso

^*Corresponding author for this work

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

27 Scopus citations

Abstract

Three Terpolymers derived from resorcinol (R) and formaldehyde (F) and diaminoethane (TER-1), urea (TER-2) and thiourea (TER-3) were synthesized and their inhibitive action on corrosion of mid steel in 1M HCl was studied using electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, linear polarization and gravimetric and weight loss methods. The values of activation energy (Ea) various thermodynamic parameters were calculated to describe the mechanism of adsorption. The inhibition efficiency of the synthesized inhibitors followed the order TER-3 > TER-2 > TER-1. Among the studied terpolymers, TER-3 exhibited the best inhibition efficiency (95% at 50 ppm). Potentiodynamic polarizations studies suggest that all terpolymers are mixed type inhibitors.

Original language	English
Pages (from-to)	12894-12906
Number of pages	13
Journal	International Journal of Electrochemical Science
Volume	8
Issue number	12
DOIs	https://doi.org/10.1016/s1452-3981(23)13315-3
State	Published - Dec 2013
Externally published	Yes

Keywords

Acid corrosion
EIS
Mild steel
Terpolymer
Thermodynamic parameters

ASJC Scopus subject areas

Electrochemistry

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10.1016/s1452-3981(23)13315-3

Cite this

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title = "Electrochemical and thermodynamic investigation of some soluble terpolymers as effective corrosion inhibitors for mild steel in 1M hydrochloric acid solution",

abstract = "Three Terpolymers derived from resorcinol (R) and formaldehyde (F) and diaminoethane (TER-1), urea (TER-2) and thiourea (TER-3) were synthesized and their inhibitive action on corrosion of mid steel in 1M HCl was studied using electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, linear polarization and gravimetric and weight loss methods. The values of activation energy (Ea) various thermodynamic parameters were calculated to describe the mechanism of adsorption. The inhibition efficiency of the synthesized inhibitors followed the order TER-3 > TER-2 > TER-1. Among the studied terpolymers, TER-3 exhibited the best inhibition efficiency (95\% at 50 ppm). Potentiodynamic polarizations studies suggest that all terpolymers are mixed type inhibitors.",

keywords = "Acid corrosion, EIS, Mild steel, Terpolymer, Thermodynamic parameters",

author = "Verma, \{Chandra Bhan\} and Quraishi, \{M. A.\} and Ebenso, \{E. E.\}",

year = "2013",

month = dec,

doi = "10.1016/s1452-3981(23)13315-3",

language = "English",

volume = "8",

pages = "12894--12906",

journal = "International Journal of Electrochemical Science",

issn = "1452-3981",

publisher = "Elsevier B.V.",

number = "12",

}

Electrochemical and thermodynamic investigation of some soluble terpolymers as effective corrosion inhibitors for mild steel in 1M hydrochloric acid solution. / Verma, Chandra Bhan; Quraishi, M. A.; Ebenso, E. E.
In: International Journal of Electrochemical Science, Vol. 8, No. 12, 12.2013, p. 12894-12906.

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

TY - JOUR

T1 - Electrochemical and thermodynamic investigation of some soluble terpolymers as effective corrosion inhibitors for mild steel in 1M hydrochloric acid solution

AU - Verma, Chandra Bhan

AU - Quraishi, M. A.

AU - Ebenso, E. E.

PY - 2013/12

Y1 - 2013/12

N2 - Three Terpolymers derived from resorcinol (R) and formaldehyde (F) and diaminoethane (TER-1), urea (TER-2) and thiourea (TER-3) were synthesized and their inhibitive action on corrosion of mid steel in 1M HCl was studied using electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, linear polarization and gravimetric and weight loss methods. The values of activation energy (Ea) various thermodynamic parameters were calculated to describe the mechanism of adsorption. The inhibition efficiency of the synthesized inhibitors followed the order TER-3 > TER-2 > TER-1. Among the studied terpolymers, TER-3 exhibited the best inhibition efficiency (95% at 50 ppm). Potentiodynamic polarizations studies suggest that all terpolymers are mixed type inhibitors.

AB - Three Terpolymers derived from resorcinol (R) and formaldehyde (F) and diaminoethane (TER-1), urea (TER-2) and thiourea (TER-3) were synthesized and their inhibitive action on corrosion of mid steel in 1M HCl was studied using electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, linear polarization and gravimetric and weight loss methods. The values of activation energy (Ea) various thermodynamic parameters were calculated to describe the mechanism of adsorption. The inhibition efficiency of the synthesized inhibitors followed the order TER-3 > TER-2 > TER-1. Among the studied terpolymers, TER-3 exhibited the best inhibition efficiency (95% at 50 ppm). Potentiodynamic polarizations studies suggest that all terpolymers are mixed type inhibitors.

KW - Acid corrosion

KW - EIS

KW - Mild steel

KW - Terpolymer

KW - Thermodynamic parameters

UR - https://www.scopus.com/pages/publications/84887601822

U2 - 10.1016/s1452-3981(23)13315-3

DO - 10.1016/s1452-3981(23)13315-3

M3 - Article

AN - SCOPUS:84887601822

SN - 1452-3981

VL - 8

SP - 12894

EP - 12906

JO - International Journal of Electrochemical Science

JF - International Journal of Electrochemical Science

IS - 12

ER -

Electrochemical and thermodynamic investigation of some soluble terpolymers as effective corrosion inhibitors for mild steel in 1M hydrochloric acid solution

Abstract

Keywords

ASJC Scopus subject areas

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