Abstract:
Metal-organic frameworks (MOFs) are porous materials with huge specific surface area and abundant active sites, which are composed of metal ions or clusters and organic ligands in the form of coordination bonds. In recent years, MOFs have been successfully applied in many fields due to their excellent physical, chemical, and biological properties. Electrochemical sensors have advantages such as economy, portability, and sensitivity, making them increasingly valued in the field of sensors. Many studies have shown that the electrode materials will affect the performance of electrochemical sensors. Therefore, the research on electrode materials is still one of the hotspots. MOFs are also commonly used to construct electrochemical sensors. However, electrochemical sensors prepared from single MOFs have shortcomings such as insufficient conductivity, low sensitivity, and poor electrochemical catalytic ability. In order to compensate for these defects, a new type of nanocomposite material with very ideal conductivity was formed by adding metal nanoparticles (MNPs) to MOFs. The combination of the two is expected to be widely applied in the field of sensors. This review summarizes the applications of various MNPs/MOFs composites in the field of electrochemical sensors and provides some references for the development of MNPs/MOFs composites-based electrochemical sensors in the future.
摘要:
金属有机骨架(MOFs)是一种具有巨大比表面积和丰富活性位点的多孔材料,它们由金属离子或簇和有机配体以配位键的形式组成。近年来,MOFs由于其优异的物理特性,已成功应用于许多领域,化学,和生物学特性。电化学传感器具有经济、便携性,和灵敏度,使得它们在传感器领域越来越受到重视。许多研究表明,电极材料会影响电化学传感器的性能。因此,电极材料的研究仍是热点之一。MOF也通常用于构建电化学传感器。然而,由单个MOFs制备的电化学传感器具有导电性不足等缺点,灵敏度低,电化学催化能力差。为了弥补这些缺陷,通过将金属纳米颗粒(MNPs)添加到MOFs中,形成了一种具有非常理想电导率的新型纳米复合材料。两者的结合有望在传感器领域得到广泛应用。本文综述了各种MNPs/MOFs复合材料在电化学传感器领域的应用,为未来MNPs/MOFs复合材料电化学传感器的发展提供参考。