Designing oxide chemiresistors for detecting volatile aromatic compounds: recent progresses and future perspectives

Young Kook Moon, Ki Beom Kim, Seong Yong Jeong, Jong Heun Lee

Research output: Contribution to journalReview articlepeer-review

16 Citations (Scopus)


Oxide chemiresistors have mostly been used to detect reactive gases such as ethanol, acetone, formaldehyde, nitric dioxide, and carbon monoxide. However, the selective and sensitive detection of volatile aromatic compounds such as benzene, toluene, and xylene, which are extremely toxic and harmful, using oxide chemiresistors remains challenging because of the molecular stability of benzene rings containing chemicals. Moreover, the performance of the sensing materials is insufficient to detect trace concentration levels of volatile aromatic compounds, which lead to harmful effects on human beings. Here, the strategies for designing highly selective and sensitive volatile aromatic compound gas sensors using oxide chemiresistors were suggested and reviewed. Key approaches include the use of thermal activation, design of sensing materials with high catalytic activity, the utilization of catalytic microreactors and bilayer structures with catalytic overlayer, and the pretreatment of analyte gases or post analysis of sensing signals. In addition, future perspectives from the viewpoint of designing sensing materials and sensor structures for high-performance and robust volatile aromatic compounds gas sensors are provided. Finally, we discuss possible applications of the sensors and sensor arrays.

Original languageEnglish
Pages (from-to)5439-5454
Number of pages16
JournalChemical Communications
Issue number36
Publication statusPublished - 2022 Apr 13

Bibliographical note

Publisher Copyright:
© 2022 The Royal Society of Chemistry

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Metals and Alloys
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • General Chemistry
  • Catalysis


Dive into the research topics of 'Designing oxide chemiresistors for detecting volatile aromatic compounds: recent progresses and future perspectives'. Together they form a unique fingerprint.

Cite this