Corrosion inhibition properties of two imidazolium ionic liquids with hydrophilic tetrafluoroborate and hydrophobic hexafluorophosphate anions in acid medium

Yangyang Guo; Bin Xu; Ying Liu; Wenzhong Yang; Xiaoshuang Yin; Yun Chen; Jinxun Le; Zhihao Chen

doi:10.1016/j.jiec.2017.07.016

Corrosion inhibition properties of two imidazolium ionic liquids with hydrophilic tetrafluoroborate and hydrophobic hexafluorophosphate anions in acid medium

Yangyang Guo, Bin Xu, Ying Liu, Wenzhong Yang, Xiaoshuang Yin, Yun Chen, Jinxun Le, Zhihao Chen

School of Chemistry and Moleculai Engineering

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

82 Scopus citations

Abstract

The ionic liquids, 1-vinyl-3-aminopropylimidazolium hexafluorophosphate ([VAIM][PF₆]) and 1-vinyl-3-aminopropylimidazolium tetrafluoroborate ([VAIM][BF₄]) acted as the corrosion inhibitors. Weight loss measurements showed the corrosion inhibition efficiencies of [VAIM][PF₆] and [VAIM][BF₄] were 90.53% and 54.01% at 45 °C, respectively. The ILs were mix-type inhibitors. Raising the temperature can have a decreased inhibition efficiency of [VAIM][BF₄], while [VAIM][PF₆] presented an opposite trend. In addition, [VAIM][PF₆] obeyed Langmuir monolayer adsorption isotherm, while [VAIM][BF₄] obeyed EI-Awady kinetic-thermodynamic adsorption for blocking active sites. Moreover, Molecular Dynamic Simulations showed that [VAIM][PF₆] owned a higher adsorption energy, which may be responsible for the more adsorption groups of [VAIM][PF₆].

Original language	English
Pages (from-to)	234-247
Number of pages	14
Journal	Journal of Industrial and Engineering Chemistry
Volume	56
DOIs	https://doi.org/10.1016/j.jiec.2017.07.016
State	Published - 25 Dec 2017

Keywords

Acid solution
Corrosion inhibition
EIS
Ionic liquid
Polarization

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@article{7cce39acf4434b939f19d99a551aa08c,

title = "Corrosion inhibition properties of two imidazolium ionic liquids with hydrophilic tetrafluoroborate and hydrophobic hexafluorophosphate anions in acid medium",

abstract = "The ionic liquids, 1-vinyl-3-aminopropylimidazolium hexafluorophosphate ([VAIM][PF6]) and 1-vinyl-3-aminopropylimidazolium tetrafluoroborate ([VAIM][BF4]) acted as the corrosion inhibitors. Weight loss measurements showed the corrosion inhibition efficiencies of [VAIM][PF6] and [VAIM][BF4] were 90.53% and 54.01% at 45 °C, respectively. The ILs were mix-type inhibitors. Raising the temperature can have a decreased inhibition efficiency of [VAIM][BF4], while [VAIM][PF6] presented an opposite trend. In addition, [VAIM][PF6] obeyed Langmuir monolayer adsorption isotherm, while [VAIM][BF4] obeyed EI-Awady kinetic-thermodynamic adsorption for blocking active sites. Moreover, Molecular Dynamic Simulations showed that [VAIM][PF6] owned a higher adsorption energy, which may be responsible for the more adsorption groups of [VAIM][PF6].",

keywords = "Acid solution, Corrosion inhibition, EIS, Ionic liquid, Polarization",

author = "Yangyang Guo and Bin Xu and Ying Liu and Wenzhong Yang and Xiaoshuang Yin and Yun Chen and Jinxun Le and Zhihao Chen",

note = "Publisher Copyright: {\textcopyright} 2017 The Korean Society of Industrial and Engineering Chemistry",

year = "2017",

month = dec,

day = "25",

doi = "10.1016/j.jiec.2017.07.016",

language = "英语",

volume = "56",

pages = "234--247",

journal = "Journal of Industrial and Engineering Chemistry",

issn = "1226-086X",

publisher = "Korean Society of Industrial Engineering Chemistry",

}

TY - JOUR

T1 - Corrosion inhibition properties of two imidazolium ionic liquids with hydrophilic tetrafluoroborate and hydrophobic hexafluorophosphate anions in acid medium

AU - Guo, Yangyang

AU - Xu, Bin

AU - Liu, Ying

AU - Yang, Wenzhong

AU - Yin, Xiaoshuang

AU - Chen, Yun

AU - Le, Jinxun

AU - Chen, Zhihao

PY - 2017/12/25

Y1 - 2017/12/25

N2 - The ionic liquids, 1-vinyl-3-aminopropylimidazolium hexafluorophosphate ([VAIM][PF6]) and 1-vinyl-3-aminopropylimidazolium tetrafluoroborate ([VAIM][BF4]) acted as the corrosion inhibitors. Weight loss measurements showed the corrosion inhibition efficiencies of [VAIM][PF6] and [VAIM][BF4] were 90.53% and 54.01% at 45 °C, respectively. The ILs were mix-type inhibitors. Raising the temperature can have a decreased inhibition efficiency of [VAIM][BF4], while [VAIM][PF6] presented an opposite trend. In addition, [VAIM][PF6] obeyed Langmuir monolayer adsorption isotherm, while [VAIM][BF4] obeyed EI-Awady kinetic-thermodynamic adsorption for blocking active sites. Moreover, Molecular Dynamic Simulations showed that [VAIM][PF6] owned a higher adsorption energy, which may be responsible for the more adsorption groups of [VAIM][PF6].

AB - The ionic liquids, 1-vinyl-3-aminopropylimidazolium hexafluorophosphate ([VAIM][PF6]) and 1-vinyl-3-aminopropylimidazolium tetrafluoroborate ([VAIM][BF4]) acted as the corrosion inhibitors. Weight loss measurements showed the corrosion inhibition efficiencies of [VAIM][PF6] and [VAIM][BF4] were 90.53% and 54.01% at 45 °C, respectively. The ILs were mix-type inhibitors. Raising the temperature can have a decreased inhibition efficiency of [VAIM][BF4], while [VAIM][PF6] presented an opposite trend. In addition, [VAIM][PF6] obeyed Langmuir monolayer adsorption isotherm, while [VAIM][BF4] obeyed EI-Awady kinetic-thermodynamic adsorption for blocking active sites. Moreover, Molecular Dynamic Simulations showed that [VAIM][PF6] owned a higher adsorption energy, which may be responsible for the more adsorption groups of [VAIM][PF6].

KW - Acid solution

KW - Corrosion inhibition

KW - EIS

KW - Ionic liquid

KW - Polarization

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U2 - 10.1016/j.jiec.2017.07.016

DO - 10.1016/j.jiec.2017.07.016

M3 - 文章

AN - SCOPUS:85026682648

SN - 1226-086X

VL - 56

SP - 234

EP - 247

JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

ER -

Corrosion inhibition properties of two imidazolium ionic liquids with hydrophilic tetrafluoroborate and hydrophobic hexafluorophosphate anions in acid medium

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