MOF-Based Chemiresistive Gas Sensors: Toward New Functionalities

Young Moo Jo, Yong Kun Jo, Jong Heun Lee, Ho Won Jang, In Sung Hwang, Do Joon Yoo

Research output: Contribution to journalReview articlepeer-review

101 Citations (Scopus)

Abstract

The sensing performances of gas sensors must be improved and diversified to enhance quality of life by ensuring health, safety, and convenience. Metal–organic frameworks (MOFs), which exhibit an extremely high surface area, abundant porosity, and unique surface chemistry, provide a promising framework for facilitating gas-sensor innovations. Enhanced understanding of conduction mechanisms of MOFs has facilitated their use as gas-sensing materials, and various types of MOFs have been developed by examining the compositional and morphological dependences and implementing catalyst incorporation and light activation. Owing to their inherent separation and absorption properties and catalytic activity, MOFs are applied as molecular sieves, absorptive filtering layers, and heterogeneous catalysts. In addition, oxide- or carbon-based sensing materials with complex structures or catalytic composites can be derived by the appropriate post-treatment of MOFs. This review discusses the effective techniques to design optimal MOFs, in terms of computational screening and synthesis methods. Moreover, the mechanisms through which the distinctive functionalities of MOFs as sensing materials, heterostructures, and derivatives can be incorporated in gas-sensor applications are presented.

Original languageEnglish
Article number2206842
JournalAdvanced Materials
Volume35
Issue number43
DOIs
Publication statusPublished - 2023 Oct 26

Bibliographical note

Publisher Copyright:
© 2023 Wiley-VCH GmbH.

Keywords

  • chemiresistors
  • gas sensors
  • metal–organic framework derivatives
  • metal–organic framework membranes
  • metal–organic frameworks

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • General Materials Science

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