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Nonporous Adaptive Crystals of Pillararenes
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2018-07-16 00:00:00 , DOI: 10.1021/acs.accounts.8b00255
Kecheng Jie 1 , Yujuan Zhou 1 , Errui Li 1 , Feihe Huang 1
Affiliation  

Porous materials with high surface areas have drawn more and more attention in recent years because of their wide applications in physical adsorption and energy-efficient adsorptive separation processes. Most of the reported porous materials are macromolecular porous materials, such as zeolites, metal–organic frameworks (MOFs), or porous coordination polymers (PCPs), and porous organic polymers (POPs) or covalent organic frameworks (COFs), in which the building blocks are linked together by covalent or coordinative bonds. These materials are barely soluble and thus are not solution-processable. Furthermore, the relatively low chemical, moisture, and thermal stability of most MOFs and COFs cannot be neglected. On the other hand, molecular porous materials such as porous organic cages (POCs), which have been developed very recently, also show promising applications in adsorption and separation processes. They can be soluble in organic solvents, making them solution-processable materials. However, they are usually sensitive to acid/base and humid environments since most of them are based on dynamic covalent bonding. These macromolecular and molecular porous materials usually have two similar features: high Brunauer–Emmett–Teller (BET) surface areas and rigid pore structures, which are stable during adsorption and separation processes.

中文翻译:

紫罗兰烯的无孔自适应晶体

由于具有高表面积的多孔材料在物理吸附和高能效吸附分离过程中的广泛应用,近年来受到越来越多的关注。报告的大多数多孔材料是大分子多孔材料,例如沸石,金属有机骨架(MOF)或多孔配位聚合物(PCP),以及多孔有机聚合物(POP)或共价有机骨架(COF),其中建筑物嵌段通过共价键或配位键连接在一起。这些材料几乎不溶,因此不可溶液加工。此外,不能忽略大多数MOF和COF相对较低的化学,湿气和热稳定性。另一方面,最近开发的分子多孔材料,例如多孔有机笼(POC),在吸附和分离过程中也显示出有希望的应用。它们可以溶于有机溶剂,使其成为可溶液加工的材料。但是,它们通常对酸/碱和潮湿环境敏感,因为它们大多数基于动态共价键。这些大分子和分子多孔材料通常具有两个相似的特征:高的Brunauer-Emmett-Teller(BET)表面积和刚性的孔结构,在吸附和分离过程中稳定。
更新日期:2018-07-16
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