离子液体
吸附
多孔性
萃取(化学)
烟气脱硫
化学
化学工程
密度泛函理论
多孔介质
偶联反应
催化作用
离子
氢键
无机化学
有机化学
分子
计算化学
工程类
作者
Jinrui Zhang,Jie Yin,Xinmiao Zhang,Hongshun Ran,Yuan Zhang,Linhua Zhu,Wei Jiang,Hongping Li,Huaming Li,Ming Zhang
标识
DOI:10.1016/j.jcis.2023.09.004
摘要
Porous ionic liquids (PILs) offer a distinctive combination of liquid-like fluidity and solid porosity, making them well-suited for various applications including separation, catalysis, and energy storage. Nevertheless, the design limitations and complex synthesis processes have hindered the development of PILs. Here, the one-step coupling neutralization reaction (OCNR) method has been first proposed for the controllable synthesis of functionalized protic porous ionic liquids (PPILs). Specifically, three types of PPILs have been synthesized based on tuning the position of the corona amino functional groups. The results indicate the crucial role of protic ion pairs in the formation of pure liquid PPILs with low viscosity. The extraction efficiency has obviously increased after introducing the porous materials from 38.5% to 51.9%. The results showed PPILs play good extraction-adsorption coupled desulfurization (EADS) performance. The density functional theory (DFT) results show that both the protic ion pairs and the porous structure have significant roles in EADS, with the former offering CH···π interactions, while the latter provides hydrogen bonding (CH···O) interactions. Ultimately, the strategy simplifies the synthesis process, providing a new idea for the directional design of low-viscosity PILs with specific functions.
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