Design and synthesis of boric acid-based deep eutectic solvents for green liquid superlubricity and bio-lubrication applications
Research on the chemical structures and physicochemical properties of deep eutectic solvents (DESs) is crucial to develop high-performance DES-based lubricating materials for solving tribological problem, including friction and wear. Herein, a series of boric acid-based DESs (B-DESs) were synthesize...
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| Language: | English |
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Elsevier
2025-07-01
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| Series: | Next Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949822825000905 |
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| author | Qiulong Gao Jinxia Hu Dong Pei Zhangpeng Li Jinqing Wang Shengrong Yang |
| author_facet | Qiulong Gao Jinxia Hu Dong Pei Zhangpeng Li Jinqing Wang Shengrong Yang |
| author_sort | Qiulong Gao |
| collection | DOAJ |
| description | Research on the chemical structures and physicochemical properties of deep eutectic solvents (DESs) is crucial to develop high-performance DES-based lubricating materials for solving tribological problem, including friction and wear. Herein, a series of boric acid-based DESs (B-DESs) were synthesized using choline chloride (hydrogen bond acceptor, HBA) and sorbitol/boric acid (hydrogen bond donors, HBDs) through a simple heating-stirring method. The experimental investigations and quantum chemistry calculation demonstrated that B-DESs exhibited optimized chemical structures, favorable rheological properties, low melting points (below −61.6 °C), high thermostability (with decomposition temperatures exceeding 282 °C), and biocompatibility. As lubricants, they showed exceptional tribological performance, achieving macroscale superlubricity with a friction coefficient of ∼0.0088 and excellent anti-wear properties on polyoxymethylene substrates even under high-load conditions. The exceptional lubrication performance was attributed to synergetic lubrication between the fluid nature of B-DESs and the self-lubrication property of the substrates, as well as the potential formation of lubricating films at the tribo-interface. This study introduces a novel and straightforward approach for synthesizing green and high-performance DES-based liquid superlubricity materials, and offering significant potential in bio-lubrication applications. |
| format | Article |
| id | doaj-art-9ed3b6abaefa4c2b88a4badf3bf817cf |
| institution | OA Journals |
| issn | 2949-8228 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Next Materials |
| spelling | doaj-art-9ed3b6abaefa4c2b88a4badf3bf817cf2025-08-20T02:02:01ZengElsevierNext Materials2949-82282025-07-01810057210.1016/j.nxmate.2025.100572Design and synthesis of boric acid-based deep eutectic solvents for green liquid superlubricity and bio-lubrication applicationsQiulong Gao0Jinxia Hu1Dong Pei2Zhangpeng Li3Jinqing Wang4Shengrong Yang5State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, ChinaCenter of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China; CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaCenter of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China; CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Qingdao Center of Resource Chemistry & New Materials, Qingdao 266000, ChinaState Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China; Qingdao Center of Resource Chemistry & New Materials, Qingdao 266000, China; Corresponding authors at: State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China; Corresponding authors at: State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, ChinaResearch on the chemical structures and physicochemical properties of deep eutectic solvents (DESs) is crucial to develop high-performance DES-based lubricating materials for solving tribological problem, including friction and wear. Herein, a series of boric acid-based DESs (B-DESs) were synthesized using choline chloride (hydrogen bond acceptor, HBA) and sorbitol/boric acid (hydrogen bond donors, HBDs) through a simple heating-stirring method. The experimental investigations and quantum chemistry calculation demonstrated that B-DESs exhibited optimized chemical structures, favorable rheological properties, low melting points (below −61.6 °C), high thermostability (with decomposition temperatures exceeding 282 °C), and biocompatibility. As lubricants, they showed exceptional tribological performance, achieving macroscale superlubricity with a friction coefficient of ∼0.0088 and excellent anti-wear properties on polyoxymethylene substrates even under high-load conditions. The exceptional lubrication performance was attributed to synergetic lubrication between the fluid nature of B-DESs and the self-lubrication property of the substrates, as well as the potential formation of lubricating films at the tribo-interface. This study introduces a novel and straightforward approach for synthesizing green and high-performance DES-based liquid superlubricity materials, and offering significant potential in bio-lubrication applications.http://www.sciencedirect.com/science/article/pii/S2949822825000905Boric acidDeep eutectic solventsFrictionLubricationSuperlubricity |
| spellingShingle | Qiulong Gao Jinxia Hu Dong Pei Zhangpeng Li Jinqing Wang Shengrong Yang Design and synthesis of boric acid-based deep eutectic solvents for green liquid superlubricity and bio-lubrication applications Next Materials Boric acid Deep eutectic solvents Friction Lubrication Superlubricity |
| title | Design and synthesis of boric acid-based deep eutectic solvents for green liquid superlubricity and bio-lubrication applications |
| title_full | Design and synthesis of boric acid-based deep eutectic solvents for green liquid superlubricity and bio-lubrication applications |
| title_fullStr | Design and synthesis of boric acid-based deep eutectic solvents for green liquid superlubricity and bio-lubrication applications |
| title_full_unstemmed | Design and synthesis of boric acid-based deep eutectic solvents for green liquid superlubricity and bio-lubrication applications |
| title_short | Design and synthesis of boric acid-based deep eutectic solvents for green liquid superlubricity and bio-lubrication applications |
| title_sort | design and synthesis of boric acid based deep eutectic solvents for green liquid superlubricity and bio lubrication applications |
| topic | Boric acid Deep eutectic solvents Friction Lubrication Superlubricity |
| url | http://www.sciencedirect.com/science/article/pii/S2949822825000905 |
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