Mechanochemical in-situ construction of ionic liquid-functionalized covalent organic frameworks for anti-wear and friction reduction

Qian Ye; Yaojie Yan; Xiaozhi Zhang; Xin Chen; Wei Bai; Shujuan Liu; Feng Zhou

doi:10.1016/j.triboint.2023.109027

Mechanochemical in-situ construction of ionic liquid-functionalized covalent organic frameworks for anti-wear and friction reduction

Qian Ye, Yaojie Yan, Xiaozhi Zhang, Xin Chen, Wei Bai, Shujuan Liu, Feng Zhou

School of Materials Sience and Engineering

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

21 Scopus citations

Abstract

Herein, ionic liquid-functionalized covalent organic frameworks (COFs) were prepared via mechanochemical reaction. The rich-aldehyde terminated COFs (LZU1) was firstly synthesized via the excess aldehyde monomer and amino monomer. Then, the ionic liquid (NH₂-IL) with amino group can graft onto the aldehyde terminated-COFs through Schiff base reaction between amino and aldehyde group driven by ball milling, and then through anion-exchange with NTf₂^- resulting in the ionic liquid-functionalized COFs (LZU1-NH₂IL-NTf₂). The LZU1-NH₂IL-NTf₂ displays good lubricating performance as lubricant additive, the friction coefficient is maintained at 0.106 and the wear volume is reduced by 85.4% compared with 500SN. The remarkable lubrication performance is mainly due to the physical adsorption film promoted by ionic liquid and the robust protective film formed by tribochemical reaction.

Original language	English
Article number	109027
Journal	Tribology International
Volume	189
DOIs	https://doi.org/10.1016/j.triboint.2023.109027
State	Published - Nov 2023

Keywords

Covalent organic frameworks
Ionic liquids functionalized
Lubricant additives
Mechanochemical reaction

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10.1016/j.triboint.2023.109027

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title = "Mechanochemical in-situ construction of ionic liquid-functionalized covalent organic frameworks for anti-wear and friction reduction",

abstract = "Herein, ionic liquid-functionalized covalent organic frameworks (COFs) were prepared via mechanochemical reaction. The rich-aldehyde terminated COFs (LZU1) was firstly synthesized via the excess aldehyde monomer and amino monomer. Then, the ionic liquid (NH2-IL) with amino group can graft onto the aldehyde terminated-COFs through Schiff base reaction between amino and aldehyde group driven by ball milling, and then through anion-exchange with NTf2- resulting in the ionic liquid-functionalized COFs (LZU1-NH2IL-NTf2). The LZU1-NH2IL-NTf2 displays good lubricating performance as lubricant additive, the friction coefficient is maintained at 0.106 and the wear volume is reduced by 85.4\% compared with 500SN. The remarkable lubrication performance is mainly due to the physical adsorption film promoted by ionic liquid and the robust protective film formed by tribochemical reaction.",

keywords = "Covalent organic frameworks, Ionic liquids functionalized, Lubricant additives, Mechanochemical reaction",

author = "Qian Ye and Yaojie Yan and Xiaozhi Zhang and Xin Chen and Wei Bai and Shujuan Liu and Feng Zhou",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Ltd",

year = "2023",

month = nov,

doi = "10.1016/j.triboint.2023.109027",

language = "英语",

volume = "189",

journal = "Tribology International",

issn = "0301-679X",

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TY - JOUR

T1 - Mechanochemical in-situ construction of ionic liquid-functionalized covalent organic frameworks for anti-wear and friction reduction

AU - Ye, Qian

AU - Yan, Yaojie

AU - Zhang, Xiaozhi

AU - Chen, Xin

AU - Bai, Wei

AU - Liu, Shujuan

AU - Zhou, Feng

PY - 2023/11

Y1 - 2023/11

N2 - Herein, ionic liquid-functionalized covalent organic frameworks (COFs) were prepared via mechanochemical reaction. The rich-aldehyde terminated COFs (LZU1) was firstly synthesized via the excess aldehyde monomer and amino monomer. Then, the ionic liquid (NH2-IL) with amino group can graft onto the aldehyde terminated-COFs through Schiff base reaction between amino and aldehyde group driven by ball milling, and then through anion-exchange with NTf2- resulting in the ionic liquid-functionalized COFs (LZU1-NH2IL-NTf2). The LZU1-NH2IL-NTf2 displays good lubricating performance as lubricant additive, the friction coefficient is maintained at 0.106 and the wear volume is reduced by 85.4% compared with 500SN. The remarkable lubrication performance is mainly due to the physical adsorption film promoted by ionic liquid and the robust protective film formed by tribochemical reaction.

AB - Herein, ionic liquid-functionalized covalent organic frameworks (COFs) were prepared via mechanochemical reaction. The rich-aldehyde terminated COFs (LZU1) was firstly synthesized via the excess aldehyde monomer and amino monomer. Then, the ionic liquid (NH2-IL) with amino group can graft onto the aldehyde terminated-COFs through Schiff base reaction between amino and aldehyde group driven by ball milling, and then through anion-exchange with NTf2- resulting in the ionic liquid-functionalized COFs (LZU1-NH2IL-NTf2). The LZU1-NH2IL-NTf2 displays good lubricating performance as lubricant additive, the friction coefficient is maintained at 0.106 and the wear volume is reduced by 85.4% compared with 500SN. The remarkable lubrication performance is mainly due to the physical adsorption film promoted by ionic liquid and the robust protective film formed by tribochemical reaction.

KW - Covalent organic frameworks

KW - Ionic liquids functionalized

KW - Lubricant additives

KW - Mechanochemical reaction

UR - https://www.scopus.com/pages/publications/85174070962

U2 - 10.1016/j.triboint.2023.109027

DO - 10.1016/j.triboint.2023.109027

M3 - 文章

AN - SCOPUS:85174070962

SN - 0301-679X

VL - 189

JO - Tribology International

JF - Tribology International

M1 - 109027

ER -

Mechanochemical in-situ construction of ionic liquid-functionalized covalent organic frameworks for anti-wear and friction reduction

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Keywords

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