{"title":"Fabrication of Garlic Oil-Functionalized Onion-Like Carbon Nanoparticles as Effective Nanoadditives for Improved Lubricating Performance","authors":"Rui Zhang, Shenghua Xue, Yixin Wang, Shujuan Liu*, Qian Ye* and Feng Zhou, ","doi":"10.1021/acsanm.4c01947","DOIUrl":null,"url":null,"abstract":"<p >Herein, garlic oil-functionalized onion-like carbon (OLC) nanoparticles were successfully prepared through a multistep process involving the carbonization of candle ash followed by surface modification. Initially, the OLC was prepared by heat-treating candle ash under 450 °C and then grafting polyethylenimine (PEI) using epigallocatechin gallate (EGCG) as a cross-linking agent. Subsequently, garlic oil was grafted onto PEI@OLC via the aza-Michael reaction with PEI, thereby obtaining garlic oil-functionalized OLC nanoparticles (GO@OLC). The GO@OLC exhibited enhanced lubrication properties as a lube additive, with a low coefficient of friction (COF) of 0.11 and a significant reduction of 76.57% in wear volume. The enhanced lubrication performance is credited to the rolling effect and surface repairing effect of the OLC nanoparticles as well as the formation of a complex protective layer by GO@OLC-induced tribochemical reactions.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":null,"pages":null},"PeriodicalIF":5.3000,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Nano Materials","FirstCategoryId":"88","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsanm.4c01947","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Herein, garlic oil-functionalized onion-like carbon (OLC) nanoparticles were successfully prepared through a multistep process involving the carbonization of candle ash followed by surface modification. Initially, the OLC was prepared by heat-treating candle ash under 450 °C and then grafting polyethylenimine (PEI) using epigallocatechin gallate (EGCG) as a cross-linking agent. Subsequently, garlic oil was grafted onto PEI@OLC via the aza-Michael reaction with PEI, thereby obtaining garlic oil-functionalized OLC nanoparticles (GO@OLC). The GO@OLC exhibited enhanced lubrication properties as a lube additive, with a low coefficient of friction (COF) of 0.11 and a significant reduction of 76.57% in wear volume. The enhanced lubrication performance is credited to the rolling effect and surface repairing effect of the OLC nanoparticles as well as the formation of a complex protective layer by GO@OLC-induced tribochemical reactions.
期刊介绍：
ACS Applied Nano Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics and biology relevant to applications of nanomaterials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important applications of nanomaterials.
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