Research Progress on Preparation of SnO2 Gas-Sensing Materials and Modification by Metal Ions Doping

Xinyang Gao

doi:10.54097/je31me29

Authors

Xinyang Gao

DOI:

https://doi.org/10.54097/je31me29

Keywords:

Modification by doping; synthesis method; n-type metal oxide semiconductor.

Abstract

This paper delineates the developmental trajectory of SnO₂-based gas sensing sensors and conducts an in-depth analysis of the prevalent preparation methodologies employed for nano-powder and thin film SnO₂ materials. Recent investigations underscore that the doping of metal ions primarily operates through atomic substitution and solid solution mechanisms, where partial distortions in the crystal structure and the creation of oxygen vacancies emerge as pivotal factors augmenting the gas sensing capabilities of doped SnO₂. Future research endeavors aimed at refining the modification of SnO₂ through doping are anticipated to pivot towards mitigating its susceptibility to cross-sensitivity when confronted with mixed gas environments, while concurrently exploring physicochemical and biologically inspired preparation methodologies to imbue the process with greater eco-friendliness.

Downloads

Download data is not yet available.

References

Wen Z, Tian-Mo L. Gas-sensing properties of 2-TiO2-based sensor for volatile organic compound gas and its sensing mechanism[J]. Physica B-Condensed Matter, 2010, 405(5): 1345-1348.

Lee D S, Kim Y T, Huh J S, Lee D D. Fabrication and characteristics of SnO2 gas sensor array for volatile organic compounds recognition[J]. Thin Solid Films, 2002, 416(1-2): 271-278.

Liu D, Liu T, Zhang H, et al. Gas sensing mechanism and properties of Ce-doped SnO2 sensors for volatile organic compounds[J]. Materials Science in Semiconductor Processing, 2012, 15(4): 438-444.

Salehi A. Selectivity enhancement of indium-doped SnO2 gas sensors[J]. Thin Solid Films, 2002, 416(1-2): 260-263.

Zhang W, Yang B, Liu J, et al. Highly sensitive and low operating temperature SnO2 gas sensor doped by Cu and Zn two elements[J]. Sensors and Actuators B-Chemical, 2017, 243: 982-989.

Yogamalar R, Mahendran V, Srinivasan R, et al. Gas-Sensing Properties of Needle-Shaped Ni-Doped SnO2 Nanocrystals Prepared by a Simple Sol-Gel Chemical Precipitation Method[J]. Chemistry-an Asian Journal, 2010, 5(11): 2379-2385.

Zhang L, Yin Y. Hierarchically mesoporous SnO2 nanosheets: Hydrothermal synthesis and highly ethanol-sensitive properties operated at low temperature[J]. Sensors and Actuators B-Chemical, 2013, 185: 594-601.

Abe S, Choi U S, Shimanoe K, Yamazoe N. Influences of ball-milling time on gas-sensing properties Of Co3O4 -SnO2 composites[J]. Sensors and Actuators B-Chemical, 2005, 107(2): 516-522.

Gorai S. Bio-based synthesis and applications of SnO2 nanoparticles-an overview[J]. Journal of Materials and Environmental Sciences, 2018.

Iizuka K, Kambara M, Yoshida T. Highly sensitive SnO2 porous film gas sensors fabricated by plasma spray physical vapor deposition[J]. Sensors and Actuators B-Chemical, 2012, 173: 455-461.

Chen L, Shi H, Ye C, et al. Enhanced ethanol-sensing characteristics of Au decorated In-doped SnO2 porous nanotubes at low working temperature[J]. Sensors and Actuators B-Chemical, 2023, 375.