{"title":"Synergistic Lubrication Achieved by Proton-Ionic Liquids and MoS<sub>2</sub> as High-Performance Water-Based Lubricant Additives.","authors":"Xiangyu Zuo, Hongxiang Yu, Feng Zhou, Xia Zhang","doi":"10.1021/acs.langmuir.4c05246","DOIUrl":null,"url":null,"abstract":"<p><p>Two-dimensional materials and ionic liquids are widely used as lubricating materials due to their excellent tribological properties. This study designed three water-based proton-ionic liquids (PILs) and synthesized molybdenum disulfide (MoS<sub>2</sub>) nanosheets for their combination as water-based lubricant additives. The composite lubrication system exhibits excellent tribological properties, with a friction coefficient as low as 0.024, reducing friction by 90.77% compared to water-glycol. Mechanism studies have shown that the excellent lubrication performance comes from the adsorption of ionic liquids at sliding interfaces, the interlayer slip of MoS<sub>2</sub>, and the generation of tribofilms at wear scars. This work provides theoretical support and technical guidance for the design and preparation of new water-based lubricating additives.</p>","PeriodicalId":50,"journal":{"name":"Langmuir","volume":" ","pages":"5534-5545"},"PeriodicalIF":3.9000,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Langmuir","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1021/acs.langmuir.4c05246","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/20 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Two-dimensional materials and ionic liquids are widely used as lubricating materials due to their excellent tribological properties. This study designed three water-based proton-ionic liquids (PILs) and synthesized molybdenum disulfide (MoS2) nanosheets for their combination as water-based lubricant additives. The composite lubrication system exhibits excellent tribological properties, with a friction coefficient as low as 0.024, reducing friction by 90.77% compared to water-glycol. Mechanism studies have shown that the excellent lubrication performance comes from the adsorption of ionic liquids at sliding interfaces, the interlayer slip of MoS2, and the generation of tribofilms at wear scars. This work provides theoretical support and technical guidance for the design and preparation of new water-based lubricating additives.
期刊介绍：
Langmuir is an interdisciplinary journal publishing articles in the following subject categories:
Colloids: surfactants and self-assembly, dispersions, emulsions, foams
Interfaces: adsorption, reactions, films, forces
Biological Interfaces: biocolloids, biomolecular and biomimetic materials
Materials: nano- and mesostructured materials, polymers, gels, liquid crystals
Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry
Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals
However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do?
Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*.
This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).
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