SnO2 nanostructured materials used as gas sensors for the detection of hazardous and flammable gases: A review

SnO2 has been extensively used in the detection of various gases. As a gas sensing material, SnO2 has excellent physical-chemical properties, high reliability, and short adsorption-desorption time. The application of the traditional SnO2 gas sensor is limited due to its higher work-temperature, low...

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Bibliographic Details
Published in:Nano materials science 2022-12, Vol.4 (4), p.339-350
Main Authors: Kong, Yulin, Li, Yuxiu, Cui, Xiuxiu, Su, Linfeng, Ma, Dian, Lai, Tingrun, Yao, Lijia, Xiao, Xuechun, Wang, Yude
Format: Article
Language:English
Subjects:
Gas sensor
Gas-sensing performances
Preparation methods
SnO2 nanostructured materials
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Summary:SnO2 has been extensively used in the detection of various gases. As a gas sensing material, SnO2 has excellent physical-chemical properties, high reliability, and short adsorption-desorption time. The application of the traditional SnO2 gas sensor is limited due to its higher work-temperature, low gas response, and poor selectivity. Nanomaterials can significantly impact gas-sensitive properties due to the quantum size, surface, and small size effects of nanomaterials. By applying nanotechnology to the preparation of SnO2, the SnO2 nanomaterial-based sensors could show better performance, which greatly expands the application of SnO2 gas sensors. In this review, the preparation method of the SnO2 nanostructure, the types of gas detected, and the improvements of SnO2 gas-sensing performances via elemental modification are introduced as well as the future development of SnO2 is discussed.
ISSN:2589-9651
2589-9651
DOI:10.1016/j.nanoms.2021.05.006