Multi-Layer Biocarbon Carbonized from Cellulose Nanocrystals as a Novel Lubricant Nanoadditive in Rapeseed Oil.

Minghang Guan, Kaiqi Su, Guodong Chen, Yu Cheng, Chao Chen, Haibin Zhou, Xiubo Liu, Yuan Meng

Abstract read

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Article in Materials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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8 authors.

Minghang GuanSchool of Materials Science and Energy, Central South University of Forestry and Technology, Changsha 410000, China.

Kaiqi SuSchool of Materials Science and Energy, Central South University of Forestry and Technology, Changsha 410000, China.

Guodong ChenState Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China.

Yu ChengSchool of Materials Science and Energy, Central South University of Forestry and Technology, Changsha 410000, China.

Chao ChenCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China.ORCID 0000-0001-7953-1127

Haibin ZhouSchool of Materials Science and Energy, Central South University of Forestry and Technology, Changsha 410000, China.

Xiubo LiuSchool of Materials Science and Energy, Central South University of Forestry and Technology, Changsha 410000, China.

Yuan MengSchool of Materials Science and Energy, Central South University of Forestry and Technology, Changsha 410000, China.ORCID 0009-0006-7946-1636

Funding

National Natural Science Foundation of China 52105238Natural Science Foundation of Hunan Province of China 2023JJ41051Research Start-up Fund for Introducing Talents of Central South University of Forestry and Technology 2020YJ003

6 · The paper itself

Abstract

It is limited to use cellulose nanocrystals (CNCs) as green lubricant nanoadditives due to their high biodegradability. A promising solution is to convert CNCs into biocarbon. Herein, a multi-layer biocarbon (MLC) was prepared by carbonizing CNCs with an ionic liquids-thermal method. MLC was characterized comprehensively and then dispersed into rapeseed oil for use as a nanoadditive. The tribological performance of the MLC nanoadditive was evaluated using a ball-on-disc tribometer. The lubrication mechanism of the MLC nanoadditive was elucidated according to wear analysis of the worn surfaces and wear residues. It was found that MLC had a high carbon content of 77 at% and showed a two-dimensional multi-layered morphology. Each layer was composed of amorphous carbon nanosheets embedded with many crystalline carbon dots. The MLC nanoadditive was of excellent dispersibility and stability in rapeseed oil. Tribological experiments showed that the MLC nanoadditive, with a concentration of merely 0.04 wt%, led to a decrease in the frictional coefficient by 12.4% and the wear volume by 50.7%, having higher efficacy than the CNC nanoadditive. The exceptional lubrication effect of the MLC nanoadditive was mainly attributable to its interfacial deposition behavior and its subsequent fragmenting behavior. This work develops a novel method for biocarbon preparation and showcases its significant potential in lubrication applications.

Indexed as

antiwearbiomass derivativefriction reducinglubricating additivelubrication mechanism

Identifiers

PMID42073650

DOI10.3390/ma19081483

PMCPMC13118020

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.