Catalytically Active Oil-based Lubricant Additives Enabled by Calcining Ni-Al Layered Double Hydroxides
Document identifier: oai:DiVA.org:ltu-77248
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10.1021/acs.jpclett.9b03094Keyword: Engineering and Technology,
Mechanical Engineering,
Tribology (Interacting Surfaces including Friction, Lubrication and Wear),
Teknik och teknologier,
Maskinteknik,
Tribologi (ytteknik omfattande friktion, nötning och smörjning),
Machine Elements,
MaskinelementPublication year: 2020Relevant Sustainable Development Goals (SDGs):
The SDG label(s) above have been assigned by OSDG.aiAbstract: Layered double hydroxides (LDHs) have lately been hailed as robust lubricant additives for improving tribological properties and as ideal catalysts for synthesizing carbon-based nanomaterials. In this paper, in situ analytical tools are used to track the evolution of the crystal structure and chemical composition of LDHs during calcination. Nickel oxide and elemental nickel can be produced by calcining NiAl-LDH in air (LDH-C-Air) and argon (LDH-C-Ar), respectively. For the base oil with 1 wt % LDH-C-Air, negligible wear can be detected even after a 2 h friction test under a severe contact pressure (∼637 MPa). A relatively thick tribofilm (∼60 nm) with a better mechanical property is formed, which protects the solid surface from severe wear. In addition, the possible formed carbon debris may also prevent the direct collision of asperities and effectively improve the wear resistance. This work provides a unique vision for the application of calcined LDHs with the combination of catalysis and tribology.
Authors
Hongdong Wang
Luleå tekniska universitet; Maskinelement; State Key Laboratory of Tribology, Tsinghua University, Beijing, China. Applied Materials Division, Argonne National Laboratory, Argonne, Illinois, United States.
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Yuhong Liu
State Key Laboratory of Tribology, Tsinghua University, Beijing, China.
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Fangmin Guo
X-ray Science Division, Argonne National Laboratory, Argonne, Illinois, United States
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Huaping Sheng
Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois, United States
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Kailun Xia
Department of Chemistry and Center for Nano and Micro Mechanics, Tsinghua University, Beijing, China
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Wenrui Liu
State Key Laboratory of Tribology, Tsinghua University, Beijing, China
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Jianguo Wen
Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois, United States
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Yijun Shi
Luleå tekniska universitet; Maskinelement
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Ali Erdemir
Applied Materials Division, Argonne National Laboratory, Argonne, Illinois, United States
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Jianbin Luo
State Key Laboratory of Tribology, Tsinghua University, Beijing, China
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identifier: oai:DiVA.org:ltu-77248
datestamp: 2021-04-19T12:42:08Z
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recordCreationDate: 2019-12-23
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http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-77248
10.1021/acs.jpclett.9b03094
2-s2.0-85077117254
titleInfo:
@attributes:
lang: eng
title: Catalytically Active Oil-based Lubricant Additives Enabled by Calcining Ni-Al Layered Double Hydroxides
abstract: Layered double hydroxides (LDHs) have lately been hailed as robust lubricant additives for improving tribological properties and as ideal catalysts for synthesizing carbon-based nanomaterials. In this paper in situ analytical tools are used to track the evolution of the crystal structure and chemical composition of LDHs during calcination. Nickel oxide and elemental nickel can be produced by calcining NiAl-LDH in air (LDH-C-Air) and argon (LDH-C-Ar) respectively. For the base oil with 1 wt % LDH-C-Air negligible wear can be detected even after a 2 h friction test under a severe contact pressure (∼637 MPa). A relatively thick tribofilm (∼60 nm) with a better mechanical property is formed which protects the solid surface from severe wear. In addition the possible formed carbon debris may also prevent the direct collision of asperities and effectively improve the wear resistance. This work provides a unique vision for the application of calcined LDHs with the combination of catalysis and tribology.
subject:
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lang: eng
authority: uka.se
topic:
Engineering and Technology
Mechanical Engineering
Tribology (Interacting Surfaces including Friction Lubrication and Wear)
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lang: swe
authority: uka.se
topic:
Teknik och teknologier
Maskinteknik
Tribologi (ytteknik omfattande friktion nötning och smörjning)
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authority: ltu
topic: Machine Elements
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Published
10
Validerad;2020;Nivå 2;2019-12-23 (svasva)
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Hongdong
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Luleå tekniska universitet
Maskinelement
State Key Laboratory of Tribology Tsinghua University Beijing China. Applied Materials Division Argonne National Laboratory Argonne Illinois United States.
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Liu
Yuhong
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Guo
Fangmin
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Sheng
Huaping
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Xia
Kailun
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Liu
Wenrui
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Jianguo
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Yijun
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Ali
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affiliation: Applied Materials Division Argonne National Laboratory Argonne Illinois United States
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Jianbin
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affiliation: State Key Laboratory of Tribology Tsinghua University Beijing China
originInfo:
dateIssued: 2020
publisher: American Chemical Society (ACS)
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title: Journal of Physical Chemistry Letters
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1948-7185
1948-7185
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type: volume
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start: 113
end: 120
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