Electrochemical and surface analysis studies on corrosion inhibition of Q235 steel by imidazoline derivative against CO2 corrosion

B. Wang; M. Du; J. Zhang; C. J. Gao

doi:10.1016/j.corsci.2010.09.042

Electrochemical and surface analysis studies on corrosion inhibition of Q235 steel by imidazoline derivative against CO₂ corrosion

B. Wang
, M. Du^*
, J. Zhang
, C. J. Gao

^*Corresponding author for this work

Ocean University of China

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

230 Scopus citations

Abstract

The inhibition performance of a newly synthesized thioureido imidazoline inhibitor (TAI) in CO₂ corrosion was studied by using electrochemical impedance spectroscopy (EIS), atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). Results show that the values of inhibition efficiency show peak-value-phenomenon at concentration of 0.15mmoldm^-3 owing to the change of adsorption mode. The adsorption of protonated TAI molecules on the negatively charged steel surface makes the potential of zero charge (PZC) shift to positive direction, and the long-range electrostatic exclusive forces between AFM tip and sample surface are reduced by screening effect of surface charges.

Original language	English
Pages (from-to)	353-361
Number of pages	9
Journal	Corrosion Science
Volume	53
Issue number	1
DOIs	https://doi.org/10.1016/j.corsci.2010.09.042
State	Published - Jan 2011
Externally published	Yes

Keywords

B. AFM
B. EIS
B. Weight loss
B. XPS
C. Acid inhibition

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10.1016/j.corsci.2010.09.042

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title = "Electrochemical and surface analysis studies on corrosion inhibition of Q235 steel by imidazoline derivative against CO2 corrosion",

abstract = "The inhibition performance of a newly synthesized thioureido imidazoline inhibitor (TAI) in CO2 corrosion was studied by using electrochemical impedance spectroscopy (EIS), atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). Results show that the values of inhibition efficiency show peak-value-phenomenon at concentration of 0.15mmoldm-3 owing to the change of adsorption mode. The adsorption of protonated TAI molecules on the negatively charged steel surface makes the potential of zero charge (PZC) shift to positive direction, and the long-range electrostatic exclusive forces between AFM tip and sample surface are reduced by screening effect of surface charges.",

keywords = "B. AFM, B. EIS, B. Weight loss, B. XPS, C. Acid inhibition",

author = "B. Wang and M. Du and J. Zhang and Gao, \{C. J.\}",

year = "2011",

month = jan,

doi = "10.1016/j.corsci.2010.09.042",

language = "英语",

volume = "53",

pages = "353--361",

journal = "Corrosion Science",

issn = "0010-938X",

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T1 - Electrochemical and surface analysis studies on corrosion inhibition of Q235 steel by imidazoline derivative against CO2 corrosion

AU - Wang, B.

AU - Du, M.

AU - Zhang, J.

AU - Gao, C. J.

PY - 2011/1

Y1 - 2011/1

N2 - The inhibition performance of a newly synthesized thioureido imidazoline inhibitor (TAI) in CO2 corrosion was studied by using electrochemical impedance spectroscopy (EIS), atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). Results show that the values of inhibition efficiency show peak-value-phenomenon at concentration of 0.15mmoldm-3 owing to the change of adsorption mode. The adsorption of protonated TAI molecules on the negatively charged steel surface makes the potential of zero charge (PZC) shift to positive direction, and the long-range electrostatic exclusive forces between AFM tip and sample surface are reduced by screening effect of surface charges.

AB - The inhibition performance of a newly synthesized thioureido imidazoline inhibitor (TAI) in CO2 corrosion was studied by using electrochemical impedance spectroscopy (EIS), atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). Results show that the values of inhibition efficiency show peak-value-phenomenon at concentration of 0.15mmoldm-3 owing to the change of adsorption mode. The adsorption of protonated TAI molecules on the negatively charged steel surface makes the potential of zero charge (PZC) shift to positive direction, and the long-range electrostatic exclusive forces between AFM tip and sample surface are reduced by screening effect of surface charges.

KW - B. AFM

KW - B. EIS

KW - B. Weight loss

KW - B. XPS

KW - C. Acid inhibition

UR - https://www.scopus.com/pages/publications/78149466518

U2 - 10.1016/j.corsci.2010.09.042

DO - 10.1016/j.corsci.2010.09.042

M3 - 文章

AN - SCOPUS:78149466518

SN - 0010-938X

VL - 53

SP - 353

EP - 361

JO - Corrosion Science

JF - Corrosion Science

IS - 1

ER -

Electrochemical and surface analysis studies on corrosion inhibition of Q235 steel by imidazoline derivative against CO₂ corrosion

Abstract

Keywords

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