金属有机框架及其衍生的金属氧化物在电阻式气体传感器中的应用

高灵敏和选择性的气体传感器对于实时监测大气中有毒有害气体和早期的疾病诊断具有重要的意义.目前,传统的气敏材料仍然存在着许多问题亟待解决,例如:选择性差、检测极限不够低、使用寿命短等.作为一种多孔的配位聚合物,金属有机框架材料(MOFs)由于其超高的比表面积和较大的孔隙率在气体传感器领域已经得到广泛的应用.利用MOFs自...

Applications of Metal-Organic Frameworks and Their Derived Metal Oxides in Resistive Gas Sensors

Highly sensitive and selective gas sensors are of great significance for real-time monitoring of toxic and harmful gases in the air and early diagnosis of diseases.At present,there are still many problems to be solved urgently for traditional gas-sensing materials.For example,the selectivity is poor and the detection limit,as well as the service life,is insufficient.Metal-organic frameworks(MOFs),as a kind of porous coordination polymers,have been widely used in the field of gas sensors due to their ultra-high specific surface areas and large porosities.MOFs and their derived metal oxides with different nanostructures can improve the sensitivity and selectivity of gas sensors.This provides new ideas and directions for preparing new high-performance gas sensors.Combining the gas sensing mechanism of metal oxide semiconductors(MOS),this article reviews the research progress of MOFs with different nanostructures and their derived metal oxides in the field of resistive gas sensors and prospects their applications and development directions.