材料科学
石墨烯
纳米复合材料
沸石咪唑盐骨架
润滑
化学工程
氧化物
X射线光电子能谱
离子液体
色散(光学)
傅里叶变换红外光谱
分散稳定性
复合材料
纳米技术
聚合物
吸附
冶金
有机化学
化学
工程类
物理
金属有机骨架
催化作用
光学
作者
Liwen Mu,Danyang Cao,Wei Zhuang,Qiangliang Yu,Meirong Cai,Yijun Shi
标识
DOI:10.1002/admi.201902194
摘要
Abstract 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.
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