Cage-Like Porous Materials with Simultaneous High C2H2 Storage and Excellent C2H2/CO2 Separation Performance

被引：139
作者：
Di, Zhengyi [1 ,2 ]
Liu, Caiping [1 ]
Pang, Jiandong [1 ]
Chen, Cheng [1 ]
Hu, Falu [1 ]
Yuan, Daqiang [1 ]
Wu, Mingyan [1 ]
Hong, Maochun [1 ]
机构：
[1] CAS Inst, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2021年 / 60卷 / 19期
关键词：
C2H2; CO2; separation; cage-like; porous materials; trade-off; METAL-ORGANIC FRAMEWORK; ACETYLENE UPTAKE; CARBON-DIOXIDE; OPPORTUNITIES; ADSORPTION; CAPACITY; ETHYLENE;
D O I：
10.1002/anie.202101907
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Adsorption-based separation is an important technology for C2H2 purification due to the environmentally friendly and energy-efficient advantage. In addition to the high selectivity of C2H2/CO2, the high uptake of C2H2 also plays an important role in the separation progress. However, the trade-off between adsorption capacity and separation performance is still in a dilemma. Herein, we report a series of cage-like porous materials named FJI-H8-R (R=Me, Et, Pr-n and Pr-i) which all have high C2H2 uptakes at 1 bar and 298 K. Dynamic breakthrough studies show that they all exhibit excellent C2H2/CO2 separation performance. Particularly, FJI-H8-Me possesses a long breakthrough time up to 90 min g(-1). Additionally, Grand Canonical Monte Carlo (GCMC) simulation reveals that the suitable pore space and geometry contribute much to the excellent separation performance.
引用
收藏
页码：10828 / 10832
页数：5
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