金属有机框架基敏感材料及其在气体传感器中的应用  

Metal-organic framework based sensing materials for the application of gas sensors

作　　者：童海峰 陈再平 刘伟 程纲[1,2,3] Haifeng Tong;Zaiping Chen;Wei Liu;Gang Cheng(Key Lab for Special Functional Materials,Ministry of Education,Henan University,Kaifeng 475004,China;National&Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology,Henan University,Kaifeng 475004,China;School of Materials Science and Engineering,Henan University,Kaifeng 475004,China)

机构地区：[1]河南大学特种功能材料教育部重点实验室,开封475004 [2]河南大学高效显示与照明技术国家地方联合工程研究中心,开封475004 [3]河南大学材料学院,开封475004

出　　处：《科学通报》2023年第27期3594-3613,共20页Chinese Science Bulletin

基　　金：国家自然科学基金(62104063,61974040);中国博士后科学基金(2021M701055,2022T150188)资助。

摘　　要：金属有机框架(metal-organic frame,MOF)材料是一类由金属离子或团簇物和有机配体通过有序连接构筑的具有多孔结构的配位聚合物,因此也被称为多孔配位聚合物.其中金属离子或簇、有机配体的种类,金属节点与有机配体连接方式的随机组合为开发MOF提供了无限可能,能够延伸很多的衍生物及复合材料,非常契合气体传感领域的应用.MOF材料的灵活可调性、结构多样性以及可以定制的化学或物理性能,使其具有传统多孔材料(如沸石)无法比拟的优势,已经在气敏传感方面有了一系列进展.本文综述了近年来MOF类材料在气敏传感中的研究进展和方向,从纯MOF材料、MOF衍生物及MOF复合材料3种类型展开介绍其分类及特点,总结了3种类型材料的合成方法及其在厚膜与薄膜方面的气体传感器应用,最后对MOF类材料在气体传感检测方面的未来发展进行了展望.Metal-organic frame(MOF)materials are a kind of coordination polymers with a porous structure constructed by the ordered connection of metal ions or clusters and organic ligands,so they are also called porous coordination polymers.The random combination of metal ions or clusters,the types of organic ligands,and the connection modes between metal nodes and organic ligands provide infinite possibilities for the development of MOF.They can be extended to a wide range of derivatives and composites,which is very suitable for gas sensing applications.Due to their flexibility,structural diversity,and customizable chemical or physical properties,MOF materials have incomparable advantages over traditional porous materials(such as zeolite)in the field of gas sensors.However,despite the great advances in gas sensors,a comprehensive review on the achievements is lacking.This review summarizes the recent advances of pure MOF,MOF derivatives and MOF composite materials in the field of gas sensors,focusing on the synthetic strategy and the gas-sensing property.This review also discusses the relationship between the physicochemical properties of MOF materials and their sensing performance.The main contents of this review are as follows:First,we explain the significance of the unique structure and characteristics of pure MOF materials for the enhancement of gas-sensing and present the multiple synthesis strategies for the improvement of large specific surface area and porosity,which is beneficial for achieving high sensitivity for gas-sensing properties.Next,we discuss the derivative strategy of MOF materials,as well as the applications of gas sensors in thick and thin films.Due to the structure of both metal and organic components,MOF as a precursor and sacrifice template,a variety of MOF-derived nanomaterials can be obtained,inheriting the advantages of the original MOF.In addition,we also display the progress of MOF composites in thick and thin films.MOF composites have the advantages of MOF,such as structural tunability and p

关 键 词：金属有机框架 合成调控 衍生物 复合材料 气敏性能 

分 类 号：TB381[一般工业技术—材料科学与工程] TP212[自动化与计算机技术—检测技术与自动化装置]