化学
离子液体
共价键
环境压力
多孔性
溶剂
纳米技术
共价有机骨架
化学工程
聚合物
有机化学
催化作用
材料科学
热力学
物理
工程类
作者
Xinyu Guan,Yunchao Ma,Hui Li,Yusran Yusran,Ming Xue,Qianrong Fang,Yushan Yan,Valentin Valtchev,Shilun Qiu
摘要
Covalent organic frameworks (COFs) are an emerging class of porous crystalline polymers with wide range of potential applications. However, the availability of three-dimensional (3D) COFs is still limited, and their synthesis is confined to the high-temperature solvothermal method. Here, we report for the first time a general and simple strategy to produce a series of 3D ionic liquid (IL)-containing COFs (3D-IL-COFs) by using IL as a green solvent. The syntheses are carried out at ambient temperature and pressure accompanied by a high reaction speed (e.g., only three mins for 3D-IL-COF-1), and the IL can be reused without activity loss. Furthermore, the 3D-IL-COFs show impressive performance in the separation of CO2/N2 and CO2/CH4. This research thus presents a potential pathway to green large-scale industrial production of COFs.
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