Challenges and Opportunities in Preserving Key Structural Features of 3D-Printed Metal/Covalent Organic Framework  

作　　者：Ximeng Liu Dan Zhao John Wang 

机构地区：[1]Department of Materials Science and Engineering,National University of Singapore,Singapore 117574,Singapore [2]Department of Chemical and Biomolecular Engineering,National University of Singapore,Singapore 117585,Singapore [3]National University of Singapore(Chongqing)Research Institute,Chongqing 401123,People’s Republic of China

出　　处：《Nano-Micro Letters》2024年第8期362-381,共20页纳微快报（英文版）

基　　金：the support by National Research Foundation of Singapore(NRF,Project:NRF-CRP262021RS-0002),for research conducted at the National University of Singapore(NUS)。

摘　　要：Metal-organic framework(MOF)and covalent organic framework(COF)are a huge group of advanced porous materials exhibiting attractive and tunable microstructural features,such as large surface area,tunable pore size,and functional surfaces,which have significant values in various application areas.The emerging 3D printing technology further provides MOF and COFs(M/COFs)with higher designability of their macrostructure and demonstrates large achievements in their performance by shaping them into advanced 3D monoliths.However,the currently available 3D printing M/COFs strategy faces a major challenge of severe destruction of M/COFs’microstructural features,both during and after 3D printing.It is envisioned that preserving the microstructure of M/COFs in the 3D-printed monolith will bring a great improvement to the related applications.In this overview,the 3D-printed M/COFs are categorized into M/COF-mixed monoliths and M/COF-covered monoliths.Their differences in the properties,applications,and current research states are discussed.The up-to-date advancements in paste/scaffold composition and printing/covering methods to preserve the superior M/COF microstructure during 3D printing are further discussed for the two types of 3D-printed M/COF.Throughout the analysis of the current states of 3D-printed M/COFs,the expected future research direction to achieve a highly preserved microstructure in the 3D monolith is proposed.

关 键 词：Metal-organic frameworks Covalent organic frameworks 3D printing Microstructure MONOLITH 

分 类 号：TP391.73[自动化与计算机技术—计算机应用技术] TB34[自动化与计算机技术—计算机科学与技术]