The “block‐on‐plate” nanocomposite structure material is realized with the zeolitic imidazolate framework (ZIF‐67) on graphene oxide (GO) with surface oxygen‐rich functional groups. Scanning electron microscopy, X‐ray photoelectron spectroscopy, X‐ray diffractograms, fourier transform infrared spectroscopy, and ZIF‐67/GO demonstrate a high capability of promoting the lubricating performance of [Choline][Proline] ([CH][P]) bio‐ionic liquid. Specifically, the wear volume of the disc by [CH][P]‐0.1 ZIF‐67/GO is only 52% of the one lubricated by pure [CH][P]. Moreover, ZIF‐67/GO shows a long time, high dispersion stability in [CH][P]. In addition, the combination of GO nanosheets and ZIF‐67 can make ZIF‐67/GO have better polishing effect between the steels during the friction process, which can effectively form a robust lubrication layer and improves overall lubricating properties. As a result, the interfacial lubrication can be significantly improved by these newly developed [CH][P]‐ZIF‐67/GO lubricants. This work offers a new promising application for ZIF‐67 nanocomposites with GO in advanced lubrication systems. This work also provides a new strategy of producing lubricants containing nanoparticles with high dispersion stability, which may solve the biggest challenge in this field.

中文翻译：

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离子液体中稳定分散的沸石咪唑盐骨架/氧化石墨烯纳米复合材料，润滑性能高

“叠层”纳米复合结构材料是通过具有表面富氧官能团的氧化石墨烯（GO）上的沸石咪唑酸酯骨架（ZIF-67）实现的。扫描电子显微镜，X射线光电子能谱，X射线衍射图，傅立叶变换红外光谱和ZIF-67 / GO证明具有促进[胆碱] [脯氨酸]（[CH] [P]）润滑性能的高能力。生物离子液体。具体来说，[CH] [P] -0.1 ZIF-67 / GO所产生的磨盘磨损量仅为纯[CH] [P]所润滑的磨盘的52％。此外，ZIF-67 / GO在[CH] [P]中显示出长时间的高分散稳定性。此外，GO纳米片和ZIF-67的组合可以使ZIF-67 / GO在摩擦过程中在钢之间具有更好的抛光效果，可以有效地形成坚固的润滑层并改善整体润滑性能。结果，这些新开发的[CH] [P] -ZIF-67 / GO润滑剂可以显着改善界面润滑。这项工作为具有先进润滑系统的GO的ZIF-67纳米复合材料提供了新的有希望的应用。这项工作还提供了一种生产包含具有高分散稳定性的纳米颗粒的润滑剂的新策略，这可能会解决该领域中的最大挑战。