Metal–organic frameworks for advanced transducer based gas sensors: review and perspectives

Abstract

The development of gas sensing devices to detect environmentally toxic, hazardous, and volatile organic compounds (VOCs) has witnessed a surge of immense interest over the past few decades, motivated mainly...

Current trends in the synthesis, characterization and application of metal-organic frameworks

“…237 Giri et al 26 have fully documented the recent advances of integration of quantum dots (QDs) into MOF templates and their applications. Also, the latest advances in MOF-based gas sensors relying on different transduction mechanisms such as chemiresistive, capacitive/impedimetric, field-effect transistor or Kelvin probe-based, mass-sensitive, and optical ones have been summarized by Yuan et al 29 Again, the advancements in various pristine MOF materials and their composites for different electrical transducer-based gas sensing applications have been presented by Majhi et al 258 with a perspective that the use of catalysts in conductive MOFs can improve the sensitivity of pure-MOF-based sensors and the use of single-atom catalysts and bimetallic catalysts or construction of heterogeneous nanostructures is highly anticipated to improve their sensing properties. 258 5.4.2 Biosensing.…”

Application of Metal-Organic Frameworks in Gas Pre-concentration, Pre-separation and Detection

“…这种选择性的提升是 基于材料自身的三个特点 [109] : (1) [32] , 而 MOFs 良好的稳定性则确保了气体传感 器拥有较长的使用寿命, 以及测试结果具有可重复性. 近年来诞生了大量基于 MOFs 的气体传感器, 这些传感 器可以感知气敏材料吸附气体分子前后光学、电学、质 量等重要物理化学性质的变化, 再由相应的换能器将这 些变化转换为电信号, 从而实现气体检测 [110][111][112][113] . 它们吸附气体分子前后折射率的变化完成对被测气体 的识别和检测 [115][116][117][118] .…”

Metal–organic framework (MOF)-based fluorescence “turn-on” sensors

“…26 Interestingly, MOFs can potentially act as luminescent sensors and this application has been flourishing significantly. 27–30…”