摘要
气体分离和检测技术与人们日常的生产生活密切相关,随着各种检测设备的出现,该领域在近几十年来得以快速发展.敏感材料在气体的分离和检测过程中发挥着至关重要的作用.相比于传统气敏材料,金属有机框架作为一类新型多孔材料,具有超大的比表面积和极高的孔隙率,并且孔道结构规整、孔径大小可调控.这些独有的优势使它们特别适合作为候选材料应用于气体的预富集、分离和检测中,从而实现低浓度目标气体的收集浓缩、复杂气体混合物的高效分离,以及痕量被测气体的可靠检测,最终实现检测能力和分离效率的大幅度提升.因此,金属有机框架被认为有望超越传统的气体吸附材料,而它们在气体分离与检测中的应用值得引起学术界和工业界的重点关注.
Gas separation and detection technology is closely related to people’s daily production and life.With the emergence of various detection equipment,it has made remarkable progress in recent decades.Gas sensing materials play an important role in the process of gas separation and detection.Compared with traditional gas sensing materials,metal-organic frameworks(MOFs),as a new type of porous materials,has ultra-large surface area,extremely high porosity,regular pore structure and adjustable pore size.These unique advantages make MOFs particularly suitable as promising candidates for the gas pre-concentration,pre-separation and detection,so as to realize the collection and enhancement of low concentration gas,the separation of complex gas mixtures,and the reliable detection of trace target gases.The detection ability and separation efficiency are greatly improved eventually.Therefore,MOFs are expected to surpass the traditional materials,and their application in gas separation and detection deserves the attention of both academia and industry.
作者
闫续
屈贺幂
常烨
段学欣
Yan Xu;Qu Hemi;Chang Ye;Duan Xuexin(College of Precision Instrument and Opto-electronics Engineering,Tianjin University,Tianjin 300072;State Key Laboratory of Precision Measuring Technology&Instruments,Tianjin University,Tianjin 300072)
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
2022年第8期1183-1202,共20页
Acta Chimica Sinica
关键词
气体检测
金属有机框架
气体预富集器
气相色谱柱
气体传感器
gas detection
metal-organic frameworks
gas preconcentrator
gas chromatographic column
gas sensor
