锆基金属有机框架孔道工程用于毒剂催化降解

Pore Engineering on Zr-based Metal-Organic Frameworks for Catalytic Degradation of Chemical Agents

开发对高毒性的毒剂具有高效催化降解能力的材料是化学安全领域的重要课题。锆基金属有机框架材料通常由锆-氧节点与各种有机连接体以配位相互作用连接形成,一方面具有大量可及的配位不饱和位点作为路易斯酸性位点,另一方面其锆-氧节点和有机连接体多样的配位构型以及它们自身的可修饰性可产生丰富的孔道结构,有望通过合理设计成为针对毒剂降解的高效催化材料。本文系统总结了近期利用锆基金属有机框架孔道工程开发毒剂降解催化剂的研究进展,分别从锆-氧节点连接数调节、锆-氧节点功能化修饰、有机连接体功能化修饰以及多级次孔结构构建4个方面综述了孔道工程对于锆基金属有机框架降解毒剂催化性能的优化策略和调控机制,并讨论了该领域面临的挑战以及发展方向。

Developing efficient materials for catalytic degradation of highly toxic chemical agents is essential in the chemistry security field.Zirconium-based metal-organic frameworks(Zr-MOFs)are generally formed by coordination interactions between Zr-O nodes and various organic linkers,featuring enormous accessible coordination unsaturated sites as Lewis acidic sites,and diverse coordination configurations between Zr-O nodes and organic linkers,as well as their own modifiability leading to enriched pore structures,which make them promising catalyst against chemical agents.This paper systematically summarized the recent research progress in the development of chemical agents degradation catalysts via pore engineering on Zr-MOFs and reviewed the optimization strategies and regulatory mechanisms of pore engineering on the catalytic performance of Zr-MOFs against chemical agents from four aspects:Zr-O node connectivity modulation,Zr-O node functional modification,functional linkers modification,and hierarchical pore structure construction.The challenges and perspectives of rational design strategies for elevated chemical agents degradation efficiency were discussed.