Weiwei Tang , Yi Wang , Yuhui Tan , Yunzhi Tang , Yufeng Li , Wei Zhu
{"title":"面向聚乙二醇高效纳米润滑添加剂的表面和核心双重设计碳点","authors":"Weiwei Tang , Yi Wang , Yuhui Tan , Yunzhi Tang , Yufeng Li , Wei Zhu","doi":"10.1016/j.wear.2024.205480","DOIUrl":null,"url":null,"abstract":"<div><p>Recently, energy and environmental crises have aggravated sharply, which results in the eco-friendly and high-efficiency polyethylene glycol (PEG) lubricating oils getting increasingly attention in lubrication. Advancing in PEG-based lubricating oils, especially their high-performance nano-additives is vitally important for energy conservation and reducing pollution. Therefore, a kind of surface and core dual-designed carbon dots (Zn,Cu,Fe-CDs<sub>-N</sub>) modified by ionic liquid groups ([AMIm][N(CF<sub>3</sub>SO<sub>2</sub>)<sub>2</sub>]) and doped by polymetallic atoms (Zn, Cu, and Fe) were first synthesized and creatively used as the nano-additives for the PEG200 base oil. Adding 1.0 wt% of Zn,Cu,Fe-CDs<sub>-N</sub> can endow the PEG200 base oil with optimal friction-reduction, anti-wear, and load-supporting performances, the maximal increase amplitudes of approximately 46.6 %, 66.3 %, and 125.0 %, respectively. Additionally, the tribological properties of Zn,Cu,Fe-CDs<sub>-N</sub> are without any weakening even under high load and long-time operating conditions, exhibiting good practicability and application prospects. Theoretical and experimental studies have illustrated the excellent tribological behaviors of Zn,Cu,Fe-CDs<sub>-N</sub> assigned to the synergy of film-forming and nano-lubrication effects.</p></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":null,"pages":null},"PeriodicalIF":5.3000,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Surface and core dual-designed carbon dots toward high-efficiency nano-lubricant additives for polyethylene glycol\",\"authors\":\"Weiwei Tang , Yi Wang , Yuhui Tan , Yunzhi Tang , Yufeng Li , Wei Zhu\",\"doi\":\"10.1016/j.wear.2024.205480\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Recently, energy and environmental crises have aggravated sharply, which results in the eco-friendly and high-efficiency polyethylene glycol (PEG) lubricating oils getting increasingly attention in lubrication. Advancing in PEG-based lubricating oils, especially their high-performance nano-additives is vitally important for energy conservation and reducing pollution. Therefore, a kind of surface and core dual-designed carbon dots (Zn,Cu,Fe-CDs<sub>-N</sub>) modified by ionic liquid groups ([AMIm][N(CF<sub>3</sub>SO<sub>2</sub>)<sub>2</sub>]) and doped by polymetallic atoms (Zn, Cu, and Fe) were first synthesized and creatively used as the nano-additives for the PEG200 base oil. Adding 1.0 wt% of Zn,Cu,Fe-CDs<sub>-N</sub> can endow the PEG200 base oil with optimal friction-reduction, anti-wear, and load-supporting performances, the maximal increase amplitudes of approximately 46.6 %, 66.3 %, and 125.0 %, respectively. Additionally, the tribological properties of Zn,Cu,Fe-CDs<sub>-N</sub> are without any weakening even under high load and long-time operating conditions, exhibiting good practicability and application prospects. Theoretical and experimental studies have illustrated the excellent tribological behaviors of Zn,Cu,Fe-CDs<sub>-N</sub> assigned to the synergy of film-forming and nano-lubrication effects.</p></div>\",\"PeriodicalId\":23970,\"journal\":{\"name\":\"Wear\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.3000,\"publicationDate\":\"2024-07-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Wear\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S004316482400245X\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Wear","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S004316482400245X","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
Surface and core dual-designed carbon dots toward high-efficiency nano-lubricant additives for polyethylene glycol
Recently, energy and environmental crises have aggravated sharply, which results in the eco-friendly and high-efficiency polyethylene glycol (PEG) lubricating oils getting increasingly attention in lubrication. Advancing in PEG-based lubricating oils, especially their high-performance nano-additives is vitally important for energy conservation and reducing pollution. Therefore, a kind of surface and core dual-designed carbon dots (Zn,Cu,Fe-CDs-N) modified by ionic liquid groups ([AMIm][N(CF3SO2)2]) and doped by polymetallic atoms (Zn, Cu, and Fe) were first synthesized and creatively used as the nano-additives for the PEG200 base oil. Adding 1.0 wt% of Zn,Cu,Fe-CDs-N can endow the PEG200 base oil with optimal friction-reduction, anti-wear, and load-supporting performances, the maximal increase amplitudes of approximately 46.6 %, 66.3 %, and 125.0 %, respectively. Additionally, the tribological properties of Zn,Cu,Fe-CDs-N are without any weakening even under high load and long-time operating conditions, exhibiting good practicability and application prospects. Theoretical and experimental studies have illustrated the excellent tribological behaviors of Zn,Cu,Fe-CDs-N assigned to the synergy of film-forming and nano-lubrication effects.
期刊介绍:
Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.