Development of Acetone Gas Sensor Based on Metal Oxide-Graphene Composite

DOI

10.2991/978-94-6463-566-9_8How to use a DOI?

Keywords

SnO2-rGO; VOC; Acetone sensor

Abstract

Nowadays, various technologies have been developed to facilitate human tasks or activities, such as the use of volatile organic compounds (VOCs). VOCs are a diverse group of chemical compounds emitted as gases from various sources, including industrial processes, vehicle emissions, and household products. These compounds can have a significant impact on indoor air quality and outdoor air pollution, raising various health and environmental concerns. Engineers have developed air quality monitoring technologies; however, the current sensors often come with high costs, power consumption, and low selectivity. Therefore, this study aims to develop a VOC gas sensor based on metal oxide-graphene composite, which exhibits good stability, selectivity, and response, even at low temperatures. The sensor is designed to be simple, cost-effective, and efficient. The SnO2-rGO sensor was developed using a reduction method and tested using Cellkraft P-10 mass flow controllers. In an enclosed chamber, a sensor on a heater stage was maintained at room temperature by a Nextron Temperature Controller, with compressed dry air and acetone flow rates controlled by, relative humidity kept constant at 5 ± 1% and a direct voltage of 2V applied while monitoring electrical resistance changes with a Keithley 2410 source measuring unit. OriginPro 2019b software was used to analyze the raw data obtained from the sensor testing. The focus of this study is on testing the stability, selectivity, and response of the developed acetone gas sensor. This chemoresistive sensor produced good results for detecting acetone gas at a concentration of 6 ppm at room temperature. The sensor gives a good response and recovery time, low detection limit, and exhibited good selectivity when exposed to acetone and toluene gases. Therefore, SnO2-rGO sensor is a promising candidate for acetone gas detection.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Nur Isyakierah Mohd Afizal
AU  - Puteri Nur Aisyah Abd Rahim
AU  - Norazreen Abd Aziz
AU  - Mohd Faizol Abdullah
PY  - 2024
DA  - 2024/11/01
TI  - Development of Acetone Gas Sensor Based on Metal Oxide-Graphene Composite
BT  - Proceedings of the  International Conference on Advanced Technology and Multidiscipline (ICATAM 2024)
PB  - Atlantis Press
SP  - 99
EP  - 112
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-566-9_8
DO  - 10.2991/978-94-6463-566-9_8
ID  - Afizal2024
ER  -