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Optimizing COF crystallinity for high-resolution GC separation

delete2024-06-03
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PRE
AI
C
Chu Zeng
Y
Yang Han
M
Ming Xu *
Z
Zhi‐Yuan Gu *
DOI:10.1016/j.cclet.2024.110064delete
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摘要

摘要

En 中文
本研究探讨了结晶度对气相色谱(GC)分离的影响,采用共价有机骨架(COFs)作为固定相。合成了三种结晶度不同的COF材料(CTF-DCBs)并进行了表征。结晶度优异的CTF-DCB-1实现了苯同系物以及苯乙烯/苯乙炔混合物的高选择性GC分离,而CTF-DCB-2和CTF-DCB-3表现出较低的结晶度和较差的分离性能。热力学和动力学测试表明,CTF-DCB-1具有最差的热力学吸附性能,但扩散质量传递阻力较低,这导致其分离效果最佳。因此,优化COFs的结晶度对于平衡分析物的动力学扩散和热力学相互作用、实现高性能GC固定相是必要的。
Keyword:
Covalent organic framework
Gas chromatography
Crystallinity
Kinetic diffusion
Thermodynamic adsorption

期刊

Chinese Chemical Letters 封面图
Chinese Chemical Letters
IF:
8.9
论文数:
1.2W
被引数:
3.8W

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