不对称的链接器产生了本质上混乱的金属有机框架,具有本地MOF-74结构
Bhavish Dinakar1, Julius J Oppenheim2, Marco Vandone2,3
1Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge MA 02139, USA. bdinakar@mit.edu.
概括
我们报告了一个无序的金属有机框架 (MOF),它保持了多孔性和开放的金属位点,对于气体储存和催化等应用至关重要. 这种混乱的MOF-74材料尽管缺乏传统的晶体结构,但仍然具有前景.
科学领域:
- 材料科学 材料科学 材料科学
- 化学 化学 化学
背景情况:
- 金属有机框架 (MOF) 是具有多种应用的晶体多孔材料.
- MOF-74 是一个众所周知的MOF家族,通常是晶体,用于气体吸附.
研究的目的:
- 报告MOF-74家族内一种内在无序的MOF的合成和特征.
- 为了研究这种新型无序材料的结构性,多孔性和金属位点特性.
主要方法:
- 合成的Mg2-x材料.作为-dobpdc) 的材料.
- 使用评估结晶性,多孔性和金属位点可访问性的技术进行表征.
主要成果:
- 一种本质上有障碍的MOF,Mg2-x (as-dobpdc),已成功合成.
- 这种材料表现出局部秩序,尽管没有远程结晶性.
- 保持了多孔性和高密度的开放金属部位.
结论:
- 无序的MOF可以保持关键的功能性质,如多孔性和开放的金属部位.
- 这一发现扩大了MOF的设计可能性,超越了晶体结构.
- 无序的MOF-74材料显示出需要可访问的金属站点的应用的潜力.
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