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Preparation and Tribological Properties of a Multilayer Graphene-Reinforced TiO(2) Composite Nanolubricant Additive
[Image: see text] The unique structure and physical properties of graphene and anatase TiO(2) make them suitable for use as additives for engine lubricants. This study describes the use of dielectric barrier discharge plasma-assisted ball milling to synthesize a multilayer graphene-reinforced TiO(2)...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9685759/ https://www.ncbi.nlm.nih.gov/pubmed/36440150 http://dx.doi.org/10.1021/acsomega.2c05057 |
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author | Wei, Yu-kun Dai, Le-yang Zhong, Hai-chang Liao, Hai-feng Hou, Xian-bin |
author_facet | Wei, Yu-kun Dai, Le-yang Zhong, Hai-chang Liao, Hai-feng Hou, Xian-bin |
author_sort | Wei, Yu-kun |
collection | PubMed |
description | [Image: see text] The unique structure and physical properties of graphene and anatase TiO(2) make them suitable for use as additives for engine lubricants. This study describes the use of dielectric barrier discharge plasma-assisted ball milling to synthesize a multilayer graphene-reinforced TiO(2) composite nanolubricant additive (MGTC). A variety of physical and chemical tests were performed to characterize the resulting experimental materials, including X-ray diffraction (XRD), Fourier transform infrared (FT-IR), Raman, X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM). Four-ball friction and wear testing machines were used to study the tribological properties and extreme pressure anti-wear properties of a base oil containing 0.1, 0.5, 1.0, and 1.5 wt % of the modified TiO(2). Raman spectroscopy, XPS, SEM, and energy-dispersive spectrometry (EDS) analyses were used to examine and analyze the microstructure of the friction pairs. As a result of the plasma-assisted ball milling process, expanded graphite was successfully separated into multilayer graphene nanosheets, and spherical TiO(2) was successfully bonded to the nanosheets of the multilayer graphene. The 1.0 wt % composite oil was found to provide good friction reduction and wear resistance. It had a film thickness of 27.5 nm, which was 167% thicker than base oil. Due to its excellent dispersion stability, the MGTC nanocomposite exhibited excellent lubrication performance, which was attributed to the formation of carbon protective films, titanium dioxide deposition films, transfer films, and the occurrence of nano ball effects on the surface of friction pairs. |
format | Online Article Text |
id | pubmed-9685759 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-96857592022-11-25 Preparation and Tribological Properties of a Multilayer Graphene-Reinforced TiO(2) Composite Nanolubricant Additive Wei, Yu-kun Dai, Le-yang Zhong, Hai-chang Liao, Hai-feng Hou, Xian-bin ACS Omega [Image: see text] The unique structure and physical properties of graphene and anatase TiO(2) make them suitable for use as additives for engine lubricants. This study describes the use of dielectric barrier discharge plasma-assisted ball milling to synthesize a multilayer graphene-reinforced TiO(2) composite nanolubricant additive (MGTC). A variety of physical and chemical tests were performed to characterize the resulting experimental materials, including X-ray diffraction (XRD), Fourier transform infrared (FT-IR), Raman, X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM). Four-ball friction and wear testing machines were used to study the tribological properties and extreme pressure anti-wear properties of a base oil containing 0.1, 0.5, 1.0, and 1.5 wt % of the modified TiO(2). Raman spectroscopy, XPS, SEM, and energy-dispersive spectrometry (EDS) analyses were used to examine and analyze the microstructure of the friction pairs. As a result of the plasma-assisted ball milling process, expanded graphite was successfully separated into multilayer graphene nanosheets, and spherical TiO(2) was successfully bonded to the nanosheets of the multilayer graphene. The 1.0 wt % composite oil was found to provide good friction reduction and wear resistance. It had a film thickness of 27.5 nm, which was 167% thicker than base oil. Due to its excellent dispersion stability, the MGTC nanocomposite exhibited excellent lubrication performance, which was attributed to the formation of carbon protective films, titanium dioxide deposition films, transfer films, and the occurrence of nano ball effects on the surface of friction pairs. American Chemical Society 2022-11-11 /pmc/articles/PMC9685759/ /pubmed/36440150 http://dx.doi.org/10.1021/acsomega.2c05057 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Wei, Yu-kun Dai, Le-yang Zhong, Hai-chang Liao, Hai-feng Hou, Xian-bin Preparation and Tribological Properties of a Multilayer Graphene-Reinforced TiO(2) Composite Nanolubricant Additive |
title | Preparation and Tribological
Properties of a Multilayer
Graphene-Reinforced TiO(2) Composite Nanolubricant Additive |
title_full | Preparation and Tribological
Properties of a Multilayer
Graphene-Reinforced TiO(2) Composite Nanolubricant Additive |
title_fullStr | Preparation and Tribological
Properties of a Multilayer
Graphene-Reinforced TiO(2) Composite Nanolubricant Additive |
title_full_unstemmed | Preparation and Tribological
Properties of a Multilayer
Graphene-Reinforced TiO(2) Composite Nanolubricant Additive |
title_short | Preparation and Tribological
Properties of a Multilayer
Graphene-Reinforced TiO(2) Composite Nanolubricant Additive |
title_sort | preparation and tribological
properties of a multilayer
graphene-reinforced tio(2) composite nanolubricant additive |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9685759/ https://www.ncbi.nlm.nih.gov/pubmed/36440150 http://dx.doi.org/10.1021/acsomega.2c05057 |
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