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Updated: Jul 11, 2025

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Published on: August 16, 2018

一个微孔的结有机框架,基于结四度体,以实现高效的 Xe/Kr 分离

Jiali Huang¹, Yunbin Li¹, Hao Zhang¹

¹Fujian Provincial Key Laboratory of Polymer Materials, College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350117, China.

Angewandte Chemie (International ed. in English)

|November 14, 2023

概括

这项研究介绍了HOF-FJU-46,一种由键四聚体构成的新型微孔材料. 它在气体分离应用中显示出优异的 (Xe) 吸收和Xe/ (Kr) 选择性.

科学领域:

材料科学材料科学材料科学
化学化学化学
纳米技术纳米技术

背景情况:

微孔材料对于气体分离和净化至关重要.
结合有机框架 (HOFs) 是有前途的,但很少有人使用结合四度体.
从结合四元体构造的HOF的探索是有限的.

研究的目的:

报告了第一个微孔HOF (HOF-FJU-46) 由结合四聚合物构成.
调查HOF-FJU-46的气体分离能力,特别是对于和.
分析有助于HOF-FJU-46性能的结构特征.

主要方法:

微孔 HOF-FJU-46.6 的合成和特征.
在环境条件下测量气体吸附和选择性.
对于 Xe/Kr 分离的动态突破测试.
单晶X射线衍射和分子模拟.

主要成果:

HOF-FJU-46具有出色的化学和热稳定性.
在HOF中实现了最高报告的Xe吸收 (2.51 mmol g-1) 和Xe/Kr选择性 (19.9).
动态突破性测试证实了高效的Xe/Kr分离,具有高的Kr生产率和Xe吸收,以及良好的可回收性.

结论:

HOF-FJU-46,由结合四聚体制成,是Xe/Kr分离的高效材料.
该材料的结构,具有可访问的芳香和pyrazole环,促进强大的C-H⋅⋅⋅Xe相互作用,增强Xe捕获.
这项工作扩大了HOF用于先进气体分离技术的范围.

关键词:

气体分离气体分离通过结合的有机框架.具有结合的四聚合物.克里普顿是一个星球.在Xenon上使用Xenon.

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