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极性酒精客分子调节二维MOF纳米片的堆叠模式
Yue Cheng1, Wen-Qi Tang1, Lu-Ting Geng1
1Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University Nanjing 210023 China guzhiyuan@njnu.edu.cn.
Chemical science
|March 15, 2024
概括
酒精分子控制二维金属有机框架 (MOF) 纳米片的堆叠,导致没有扭曲的Zr-BTB结构. 这些MOF表现出异构体的增强分离和稳定性的提高,为新的多孔材料开辟了道路.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 化学工程是化学工程的重要组成部分.
背景情况:
- 二维金属有机框架 (2-D MOF) 纳米板堆叠对材料性能和应用产生重大影响.
- 控制纳米板堆叠对于优化MOF性能至关重要.
研究的目的:
- 研究使用酒精客分子来调节二维MOF纳米板的堆叠.
- 为了在Zr-BTB (-1,3,5-酸) 纳米板中产生未扭曲的堆叠,并评估它们的分离能力.
主要方法:
- 使用了一系列酒精客分子 (甲醇,乙醇,) 来处理Zr-BTB纳米片.
- 使用高角度环状暗场 (HAADF) 和快速里埃转换 (FFT) 成像分析堆叠角度.
- 评估了替代异构体的分离性能,并评估了柱子的稳定性和可重复使用性.
主要成果:
- 在Zr-BTB纳米片中实现了高比例的未扭曲堆叠 (MeOH为77.01%,EtOH为83.45%,PrOH为85.61%).
- 在分离应用中证明了卓越的对选择性和出色的稳定性/可重复使用性.
- 当受极性酒精调节时,观察到Zr-TCA和Zr-TATB纳米板中的中等分离性能和扭曲堆叠与Moiré图案.
结论:
- 极性酒精客分子有效调节二维MOF纳米板堆叠,促进Zr-BTB中没有扭曲的结构.
- 没有扭曲的Zr-BTB纳米板显示出对同位素分离,稳定性和可重复使用性的承诺.
- 与极性分子的宿主-客人相互作用为设计新型多孔Moiré材料提供了一条途径.
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