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Updated: Dec 6, 2025

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

通过利用超分子相互作用来制造二维连接共价有机框架平台来实现先进的催化

Cheng Qian¹, Weiqiang Zhou¹, Jingsi Qiao²

¹Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore.

Journal of the American Chemical Society

|October 12, 2020

概括

研究人员使用超分子策略开发了一个新的二维共价有机框架 (COF) 平台. 这种多功能平台可以协调各种过渡金属,增强COF特性,并使催化等应用成为可能.

科学领域:

材料科学
超分子化学
纳米技术

背景情况:

共价有机框架 (COF) 是具有可调节结构和功能的晶体多孔聚合物.
对于先进的应用来说,控制COF的晶度,稳定性和功能性至关重要,但仍然具有挑战性.
需要采用综合性COF设计的系统方法.

研究的目的:

开发一种多功能二维联COF平台,用于过渡金属离子协调.
通过基于超分子策略的链接工程来设计COF特性.
探索金属化COF在催化中的潜力.

主要方法:

使用超分子相互作用 (键,静电相互作用) 制造两种异构COF (COF-DB和COF-DT).
COF-DB与七个双价过渡金属离子 (M(II)) 的金属化形成M/COF-DB.
结果的金属化COF的表征和它们在木-米亚拉交叉合反应中的催化活性的评估.

主要成果:

一个多功能二维连接COF平台的成功合成.
与原始COF相比,金属化COF-DB (M/COF-DB) 的 π 结合性,结晶性,稳定性和功能性得到了提高.
Pd/COF-DB表现出优异的催化活性和稳定性,优于无形对应物和Pd/COF-DT.

结论:

基于超分子策略的链接工程提供了一种构建具有可设计功能的二维COF的方法.
动态协调结合允许合成后的金属离子交换.
这项工作为创建多功能COF开辟了道路,特别是用于异质催化.

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