Synthesis, characterization and corrosion inhibition performance of the thiourea-chitosan in acidic medium

Meng Wang; Jing Zhang; Qinghai Wang; Min Du

doi:10.20964/2019.09.24

Synthesis, characterization and corrosion inhibition performance of the thiourea-chitosan in acidic medium

Meng Wang
, Jing Zhang^*
, Qinghai Wang
, Min Du

^*Corresponding author for this work

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

14 Scopus citations

Abstract

The water-soluble and green thiourea-chitosan (TUCTS) was synthesized and characterized by the Fourier transform infrared spectroscopy (FT-IR) and elemental analysis method. The corrosion inhibition performance and behavior of TUCTS for Q235 steel in 1 mol·L^-1 HCl were investigated by weight loss method, surface morphology analysis, potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS). It is found that the synthesized TUCTS is an excellent corrosion inhibitor and the inhibition efficiency exceeds 90% at 25°C. The inhibitor acts as a mixed type inhibitor by geometrical blanketing effect. Thermodynamics analysis demonstrates that the adsorption of TUCTS on Q235 steel surface fit in with the Langmuir model. The adsorption type is both physical and chemical adsorption but chemisorption dominates.

Original language	English
Pages (from-to)	8852-8868
Number of pages	17
Journal	International Journal of Electrochemical Science
Volume	14
Issue number	9
DOIs	https://doi.org/10.20964/2019.09.24
State	Published - 1 Sep 2019
Externally published	Yes

Keywords

Acid corrosion
Corrosion inhibitor
Thiourea-chitosan

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10.20964/2019.09.24

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title = "Synthesis, characterization and corrosion inhibition performance of the thiourea-chitosan in acidic medium",

abstract = "The water-soluble and green thiourea-chitosan (TUCTS) was synthesized and characterized by the Fourier transform infrared spectroscopy (FT-IR) and elemental analysis method. The corrosion inhibition performance and behavior of TUCTS for Q235 steel in 1 mol·L-1 HCl were investigated by weight loss method, surface morphology analysis, potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS). It is found that the synthesized TUCTS is an excellent corrosion inhibitor and the inhibition efficiency exceeds 90\% at 25°C. The inhibitor acts as a mixed type inhibitor by geometrical blanketing effect. Thermodynamics analysis demonstrates that the adsorption of TUCTS on Q235 steel surface fit in with the Langmuir model. The adsorption type is both physical and chemical adsorption but chemisorption dominates.",

keywords = "Acid corrosion, Corrosion inhibitor, Thiourea-chitosan",

author = "Meng Wang and Jing Zhang and Qinghai Wang and Min Du",

note = "Publisher Copyright: {\textcopyright} 2019 The Authors.",

year = "2019",

month = sep,

day = "1",

doi = "10.20964/2019.09.24",

language = "英语",

volume = "14",

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journal = "International Journal of Electrochemical Science",

issn = "1452-3981",

publisher = "Elsevier B.V.",

number = "9",

}

TY - JOUR

T1 - Synthesis, characterization and corrosion inhibition performance of the thiourea-chitosan in acidic medium

AU - Wang, Meng

AU - Zhang, Jing

AU - Wang, Qinghai

AU - Du, Min

PY - 2019/9/1

Y1 - 2019/9/1

N2 - The water-soluble and green thiourea-chitosan (TUCTS) was synthesized and characterized by the Fourier transform infrared spectroscopy (FT-IR) and elemental analysis method. The corrosion inhibition performance and behavior of TUCTS for Q235 steel in 1 mol·L-1 HCl were investigated by weight loss method, surface morphology analysis, potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS). It is found that the synthesized TUCTS is an excellent corrosion inhibitor and the inhibition efficiency exceeds 90% at 25°C. The inhibitor acts as a mixed type inhibitor by geometrical blanketing effect. Thermodynamics analysis demonstrates that the adsorption of TUCTS on Q235 steel surface fit in with the Langmuir model. The adsorption type is both physical and chemical adsorption but chemisorption dominates.

AB - The water-soluble and green thiourea-chitosan (TUCTS) was synthesized and characterized by the Fourier transform infrared spectroscopy (FT-IR) and elemental analysis method. The corrosion inhibition performance and behavior of TUCTS for Q235 steel in 1 mol·L-1 HCl were investigated by weight loss method, surface morphology analysis, potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS). It is found that the synthesized TUCTS is an excellent corrosion inhibitor and the inhibition efficiency exceeds 90% at 25°C. The inhibitor acts as a mixed type inhibitor by geometrical blanketing effect. Thermodynamics analysis demonstrates that the adsorption of TUCTS on Q235 steel surface fit in with the Langmuir model. The adsorption type is both physical and chemical adsorption but chemisorption dominates.

KW - Acid corrosion

KW - Corrosion inhibitor

KW - Thiourea-chitosan

UR - https://www.scopus.com/pages/publications/85072871016

U2 - 10.20964/2019.09.24

DO - 10.20964/2019.09.24

M3 - 文章

AN - SCOPUS:85072871016

SN - 1452-3981

VL - 14

SP - 8852

EP - 8868

JO - International Journal of Electrochemical Science

JF - International Journal of Electrochemical Science

IS - 9

ER -

Synthesis, characterization and corrosion inhibition performance of the thiourea-chitosan in acidic medium

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Keywords

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