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具有状结构的金属有机框架膜,用于高效的/分离

Lun Shu¹, Yuan Peng^2,3, Chenyu Zhu^1,4

¹State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, P. R. China.

Nature communications

|November 30, 2024

概括

我们开发了一种具有独特交织结构的新型ZIF-67膜. 这种膜实现了高/分离和优良的耐久性,使得高聚合物级的高效生产.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
纳米技术纳米技术

背景情况:

为高效的/分离而制造金属有机框架 (MOF) 膜面临选择性,机械强度和可扩展性方面的挑战.
现有的MOF膜往往存在缺陷和耐久性差,限制了它们的工业应用.

研究的目的:

设计和制造一种具有增强机械性能和分离性能的新型ZIF-67膜,用于工业烯净化.
通过结合生物灵感,耐磨结构来解决当前MOF膜的局限性.

主要方法:

ZIF-67膜的制造具有触点-正常交织结构 (TN-ZIF-67).
膜结构的特性,分离性能 (烯/的选择性) 和机械稳定性.
通过储存和磨损试验评估长期稳定性.

主要成果:

TN-ZIF-67膜显示了高/分离因子221.1,具有很高的/分离因子.
膜表现出极好的机械耐用性,性能不受1.5年的存储或反复磨损的影响.
制造过程成功地扩大到直径为4毫米的管状基板.

结论:

TN-ZIF-67膜为无缺陷,抗磨损的MOF膜提供了一个有前途的解决方案,具有卓越的分离性能和稳定性.
这种生物启发的设计策略为工业气体分离应用中先进的MOF膜铺平了道路.

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