Electronic Materials Letters

, Volume 14, Issue 3, pp 221–260 | Cite as

Recent Developments in 2D Nanomaterials for Chemiresistive-Type Gas Sensors

  • Seon-Jin ChoiEmail author
  • Il-Doo KimEmail author


Two-dimensional (2D) nanostructures are gaining tremendous interests due to the fascinating physical, chemical, electrical, and optical properties. Recent advances in 2D nanomaterials synthesis have contributed to optimization of various parameters such as physical dimension and chemical structure for specific applications. In particular, development of high performance gas sensors is gaining vast importance for real-time and on-site environmental monitoring by detection of hazardous chemical species. In this review, we comprehensively report recent achievements of 2D nanostructured materials for chemiresistive-type gas sensors. Firstly, the basic sensing mechanism is described based on charge transfer behavior between gas species and 2D nanomaterials. Secondly, diverse synthesis strategies and characteristic gas sensing properties of 2D nanostructures such as graphene, metal oxides, transition metal dichalcogenides (TMDs), metal organic frameworks (MOFs), phosphorus, and MXenes are presented. In addition, recent trends in synthesis of 2D heterostructures by integrating two different types of 2D nanomaterials and their gas sensing properties are discussed. Finally, this review provides perspectives and future research directions for gas sensor technology using various 2D nanomaterials.

Graphical Abstract


2D materials Nanosheets Chemiresistive-type Gas sensors Wearable sensors 



This work was supported by Wearable Platform Materials Technology Center (WMC) funded by the National Research Foundation of Korea (NRF) Grant of the Korean Government (MSIP; No. 2016R1A5A1009926). This material is based upon work supported by the Ministry of Trade, Industry & Energy (MOTIE, Korea) under Industrial Technology Innovation Program (No. 10070075). This research was supported by Research and Business Development Program through the Korea Institute for Advancement of Technology (KIAT) funded by the Ministry of Trade, Industry and Energy (MOTIE) (No. N0002418). This study was supported by Ministry of Science, ICT & Future Planning as Biomedical Treatment Technology Development Project (2015M3A9D7067418). This work was supported by the National Research Foundation of Korea (NRF), grant no. 2014R1A4A1003712 (BRL Program).


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Copyright information

© The Korean Institute of Metals and Materials 2018

Authors and Affiliations

  1. 1.Department of ChemistryMassachusetts Institute of TechnologyCambridgeUSA
  2. 2.Department of Materials Science and EngineeringKorea Advanced Institute of Science and Technology (KAIST)DaejeonRepublic of Korea
  3. 3.Advanced Nanosensor Research Center, KAIST Institute for the NanoCentury, KAISTDaejeonRepublic of Korea

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