基于子的金属有机框架,具有双Yolk核心外U6L3@U18L14结构用于捕获
Shuang Deng1,2, Xianghe Kong3, Xuan Fu1
1Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
Inorganic chemistry
|December 20, 2024
概括
一种基于子的新型金属有机框架 (MOF),IHEP-51被合成用于选择性捕获. 这种MOF对溶液中的和气态都有很高的吸附能力.
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:
- 基于的金属有机框架 (MOF) 提供可调的化学环境和可控制的纳米空间,用于选择性客分子吸附.
- 开发先进的MOF对于诸如气体储存,分离和催化等应用至关重要.
研究的目的:
- 构建一个基于子的新型MOF,被指定为IHEP-51,用于高效和选择性捕获.
- 研究合成的MOF的结构特征和吸附性能.
主要方法:
- 合成IHEP-51使用三酸衍生物聚碳酸) 连接体 (H6TMTTA) 和乌兰金属节点.
- 使用X射线光电子光谱 (XPS),拉曼光谱,单晶X射线衍射和密度函数理论 (DFT) 计算进行了表征.
- 在水溶液和气相中评估吸附能力.
主要成果:
- IHEP-51展示了一个双重互通 (3,6,6) 连接的框架,与Pyrgos[2]cage (U6L3) 和巨大的子 (U18L14) 结构,形成一个双黄核心结构.
- 在溶液中的最大吸附能力为420.4 mg·g-1和气态的最大吸附能力为1561.2 mg·g-1.
- 吸附存在于U6L3Pyrgos中作为三化离子 (I3−),形成一个三元核心外结构 (I3) 2@U6L3@U18L14.
结论:
- 设计的基于子的MOF,IHEP-51,由于其独特的核心外结构,在选择性捕获方面表现出色.
- 该研究提供了对MOF纳米空间内的吸附机制的见解.
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