Solvent-vapor-assisted crystallization of covalent organic framework films for CO2/CH4 separation

被引：0
作者：
Kato, Masaki [1 ]
Yanase, Takashi [2 ]
Waizumi, Hiroki [1 ,3 ]
Yokokura, Seiya [1 ,3 ]
Shimada, Toshihiro [1 ,3 ]
机构：
[1] Hokkaido Univ, Grad Sch Chem Sci & Engn, Kita 13 Nishi 8,Kita Ku, Sapporo, Hokkaido 0608628, Japan
[2] Toho Univ, Fac Sci, Dept Chem, Miyama 2-2-1, Funabashi, Chiba 2748510, Japan
[3] Hokkaido Univ, Fac Engn, Div Appl Chem, Kita 13 Nishi 8,Kita Ku, Sapporo, Hokkaido 0608628, Japan
来源：
CHEMISTRY LETTERS | 2024年 / 53卷 / 10期
基金：
日本学术振兴会;
关键词：
CO2/CH4; separation; covalent organic frameworks; solvent vapor annealing; MEMBRANES; CO2;
D O I：
10.1093/chemle/upae191
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Covalent organic framework films were prepared using alternating vapor deposition of precursors followed by solvent vapor annealing. When an as-deposited film was annealed in appropriate solvent vapors, the prepared covalent organic framework film exhibited an "onion-like" structure. This result opens a way to synthesize covalent organic framework films with highly ordered planar layers through the interaction between layers. The CO2/CH4 separation performance of covalent organic framework film was significantly improved due to the decrease in defects caused by crystallization.
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页数：5
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