Preprint Review Version 1 This version is not peer-reviewed

Nanostructured Semiconducting Metal Oxide Gas Sensors for Acetaldehyde Detection

Version 1 : Received: 26 August 2019 / Approved: 27 August 2019 / Online: 27 August 2019 (09:59:08 CEST)

A peer-reviewed article of this Preprint also exists.

Mirzaei, A.; Kim, H.W.; Kim, S.S.; Neri, G. Nanostructured Semiconducting Metal Oxide Gas Sensors for Acetaldehyde Detection. Chemosensors 2019, 7, 56. Mirzaei, A.; Kim, H.W.; Kim, S.S.; Neri, G. Nanostructured Semiconducting Metal Oxide Gas Sensors for Acetaldehyde Detection. Chemosensors 2019, 7, 56.

Journal reference: Chemosensors 2019, 7, 56
DOI: 10.3390/chemosensors7040056

Abstract

Volatile organic compounds (VOCs) are among the most abundant air pollutants. Their high concentrations can adversely affect the human body and therefore, early detection of VOCs is of outmost importance. Among the different VOCs, in this review paper, we have focused our attention on the monitoring of acetaldehyde by chemiresistive gas sensors using nanostructured semiconducting metal oxides. These sensors not only can provide a high sensing signal for detection of acetaldehyde, but also high thermal and mechanical stability and low price. This review paper is divided into three major sections. First, we will introduce acetaldehyde as the target gas and the importance of its detection. Then, the fundamentals of chemiresistive gas sensors will be briefly presented and, in the last section, a survey of literature on acetaldehyde gas sensors will be discussed. Acetaldehyde sensors working mechanism, their structures and configurations are reviewed. Finally, the future development outlook and potential applications are discussed, giving a complete panoramic view for researcher working and interested in acetaldehyde detection for different purposes in many fundamentals and applicative fields.

Subject Areas

Acetaldehyde; Chemiresistive gas sensor, Nanostructured metal oxide, Sensing mechanism.

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