NDLI: The Combination of Two-Dimensional Nanomaterials with Metal Oxide Nanoparticles for Gas Sensors: A Review

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The Combination of Two-Dimensional Nanomaterials with Metal Oxide Nanoparticles for Gas Sensors: A Review

Content Provider	MDPI
Author	Li, Tao Yin, Wen Gao, Shouwu Sun, Yaning Xu, Peilong Wu, Shaohua Kong, Hao Yang, Guozheng Wei, Gang
Copyright Year	2022
Description	Metal oxide nanoparticles have been widely utilized for the fabrication of functional gas sensors to determine various flammable, explosive, toxic, and harmful gases due to their advantages of low cost, fast response, and high sensitivity. However, metal oxide-based gas sensors reveal the shortcomings of high operating temperature, high power requirement, and low selectivity, which limited their rapid development in the fabrication of high-performance gas sensors. The combination of metal oxides with two-dimensional (2D) nanomaterials to construct a heterostructure can hybridize the advantages of each other and overcome their respective shortcomings, thereby improving the sensing performance of the fabricated gas sensors. In this review, we present recent advances in the fabrication of metal oxide-, 2D nanomaterials-, as well as 2D material/metal oxide composite-based gas sensors with highly sensitive and selective functions. To achieve this aim, we firstly introduce the working principles of various gas sensors, and then discuss the factors that could affect the sensitivity of gas sensors. After that, a lot of cases on the fabrication of gas sensors by using metal oxides, 2D materials, and 2D material/metal oxide composites are demonstrated. Finally, we summarize the current development and discuss potential research directions in this promising topic. We believe in this work is helpful for the readers in multidiscipline research fields like materials science, nanotechnology, chemical engineering, environmental science, and other related aspects.
Starting Page	982
e-ISSN	20794991
DOI	10.3390/nano12060982
Journal	Nanomaterials
Issue Number	6
Volume Number	12
Language	English
Publisher	MDPI
Publisher Date	2022-03-16
Access Restriction	Open
Subject Keyword	Nanomaterials Two-dimensional Materials Metal Oxide Nanoparticles Composite Materials Gas Sensors
Content Type	Text
Resource Type	Article

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