多孔性
材料科学
溶解度
多孔介质
化学工程
气体扩散
重量分析
磁导率
膜
扩散
金属
化学
有机化学
复合材料
热力学
冶金
燃料电池
工程类
物理
生物化学
作者
Zheng Deng,Wen Ye,Ke Gong,Yu‐Jia Zeng,Youguo Yan,Xinsheng Peng
出处
期刊:Small
[Wiley]
日期:2020-02-21
卷期号:16 (11)
被引量:55
标识
DOI:10.1002/smll.201907016
摘要
Type II porous liquids are demonstrated to be promise porous materials. However, the category of porous hosts is very limited. Here, a porous host metal-organic polyhedra (MOP-18) is reported to construct type II porous liquids. MOP-18 is dissolved into 15-crown-5 as an individual cage (5 nm). Both the molecular dynamics simulations and experimental gravimetric CO2 solubility test indicate that the inner cavity of MOP-18 in porous liquids is unoccupied by 15-crown-5 and is accessible to CO2 . Thus, the prepared porous liquids show enhanced gas solubility. Furthermore, the prepared porous liquid is encapsulated into graphene oxide (GO) nanoslits to form a GO-supported porous liquid membrane (GO-SPLM). Owing to the empty cavity of MOP-18 unit cages in porous liquids that reduces the gas diffusion barrier, GO-SPLM significantly enhances the permeability of gas.
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