Structure-property relationship and tunable lubrication mechanism of non-covalently modified graphene oxide by imidazolium ionic liquids under molecular structure scale

IF 10.5 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Pub Date : 2025-03-13 DOI:10.1016/j.carbon.2025.120212

Haolin Li , Qunfeng Zeng , Mingjin Fan , Wanjun He , Zeming Pang , Wenling Zhang

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引用次数: 0

Abstract

Designing novel additives to form multilayer integrated lubrication film provides an effective approach for developing composite nano-lubrication systems with superior comprehensive performance. Five halogen-free ionic liquids (ILs) with varying anionic structures were synthesized, providing a detailed investigation into the directional regulation of the properties of Graphene oxide (GO) by ILs with different molecular structures, as well as the structure-property relationships and tunable lubrication mechanisms between ILs and GO. The results indicated that, in ILs, the adsorption of polar sulfonic acid groups, and the presence of flexible alkyl chains, rigid aryl rings and active elements, contributes to the formation of a more stable polar adsorption and tribochemical reaction film during friction. Concurrently, the structural alterations of ILs effectively modulated the properties of GO, facilitating an in-situ synergistic lubrication effect between GO and ILs. From the perspective of ILs molecular structure design, the key anionic structures regulating the comprehensive performance of GO were investigated, and this work can provide experimental and theoretical guidance for the design and development of high-performance nano additives and solid-liquid composite lubrication systems.

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来源期刊

Carbon 工程技术-材料科学：综合

CiteScore

20.80

自引率

7.30%

发文量

审稿时长

23 days

期刊介绍： The journal Carbon is an international multidisciplinary forum for communicating scientific advances in the field of carbon materials. It reports new findings related to the formation, structure, properties, behaviors, and technological applications of carbons. Carbons are a broad class of ordered or disordered solid phases composed primarily of elemental carbon, including but not limited to carbon black, carbon fibers and filaments, carbon nanotubes, diamond and diamond-like carbon, fullerenes, glassy carbon, graphite, graphene, graphene-oxide, porous carbons, pyrolytic carbon, and other sp2 and non-sp2 hybridized carbon systems. Carbon is the companion title to the open access journal Carbon Trends. Relevant application areas for carbon materials include biology and medicine, catalysis, electronic, optoelectronic, spintronic, high-frequency, and photonic devices, energy storage and conversion systems, environmental applications and water treatment, smart materials and systems, and structural and thermal applications.