To observation, poisonous gases in the environment, Sensors with high
selectivity, high response and low operating temperature are required. In this
work, pure SnO2 nanoparticles was prepared
by using a simple and inexpensive technique (hydrothermal
method) without a template. Various confirmatory tests were performed to
characterize SnO2 nanoparticles such as energydispersive
X-ray spectroscopy (EDX), X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Transition Electron Microscopy (TEM), during the detection of the gas, we found that pure SnO2 nanoparticles has a high selectivity for ethanol to 100 ppm at a low temperature (180°C) and a high response (about 27s) and
a low detection limit of 5 ppm, also ithaveresponse/recovery times about (4s, 2s)
respectively. The distinctive sensing properties of SnO2 sensor make
it a promising candidate for ethanol detection. Furthermore, the gas-sensing
mechanism have been
References
[1]
Wang, X., et al. (2020) SnO2 Core-Shell Hollow Microspheres Co-Modification with Au and NiO Nanoparticles for Acetone Gas Sensing. Powder Technology, 364, 159-166. https://doi.org/10.1016/j.powtec.2020.02.006
[2]
Guo, W., Zhou, Q., Zhang, J., Fu, M., Radacsi, N. and Li, Y. (2019) Hydrothermal Synthesis of Bi-Doped SnO2/rGO Nanocomposites and the Enhanced Gas Sensing Performance to Benzene. Sensors and Actuators B: Chemical, 299, Article ID: 126959. https://doi.org/10.1016/j.snb.2019.126959
[3]
Cao, P.F., et al. (2020) Preparation and Characterization of a Novel Ethanol Gas Sensor Based on FeYO3 Microspheres by Using Orange Peels as Bio-Templates. Vacuum, 177, Article ID: 109359. https://doi.org/10.1016/j.vacuum.2020.109359
[4]
Ma, Z., Yu, R. and Song, J. (2019) Facile Synthesis of Pr-Doped In2O3 Nanoparticles and Their High Gas Sensing Performance for Ethanol. Sensors and Actuators B: Chemical, 305, Article ID: 127377. https://doi.org/10.1016/j.snb.2019.127377
[5]
Haron, W., Wisitsoraat, A. and Wongnawa, S. (2017) Nanostructured Perovskite Oxides—LaMO3 (M = Al, Co, Fe) Prepared by Co-Precipitation Method and Their Ethanol-Sensing Characteristics. Ceramics International, 43, 5032-5040. https://doi.org/10.1016/j.ceramint.2017.01.013
[6]
Ma, Y.T., et al. (2020) Hydrothermal-Synthesis Flower-Like SNS Microspheres Gas Sensors Bonded Physically by PVDF for Detecting Ethanol. Vacuum, 181, Article ID: 109657. https://doi.org/10.1016/j.vacuum.2020.109657
[7]
Xin, X., et al. (2019) UV-Activated Porous Zn2SnO4 Nanofibers for Selective Ethanol Sensing at Low Temperatures. Journal of Alloys and Compounds, 780, 228-236. https://doi.org/10.1016/j.jallcom.2018.11.320
[8]
Singh, G., Kohli, N. and Singh, R.C. (2017) Preparation and Characterization of Eu-Doped SnO2 Nanostructures for Hydrogen Gas Sensing. Journal of Materials Science: Materials in Electronics, 28, 2257-2266. https://doi.org/10.1007/s10854-016-5796-3
[9]
Enachi, M., et al. (2015) Integration of Individual TiO2 Nanotube on the Chip: Nanodevice for Hydrogen Sensing. Physica Status Solidi (RRL)—Rapid Research Letters, 9, 171-174. https://doi.org/10.1002/pssr.201409562
[10]
Singh, O. and Singh, R.C. (2012) Enhancement in Ethanol Sensing Response by Surface Activation of ZnO with SnO2. Materials Research Bulletin, 47, 557-561. https://doi.org/10.1016/j.materresbull.2011.12.049
[11]
Cretu, V., et al. (2016) Synthesis, Characterization and DFT Studies of Zinc-Doped Copper Oxide Nanocrystals for Gas Sensing Applications. Journal of Materials Chemistry A, 4, 6527-6539. https://doi.org/10.1039/C6TA01355D
[12]
Kohli, N., Singh, O. and Singh, R.C. (2011) Influence of pH on Particle Size and Sensing Response of Chemically Synthesized Chromium Oxide Nanoparticles to Alcohols. Sensors and Actuators B: Chemical, 158, 259-264. https://doi.org/10.1016/j.snb.2011.06.016
[13]
Lee, C.T., Lee, H.Y. and Chiu, Y.S. (2016) Performance Improvement of Nitrogen Oxide Gas Sensors Using Au Catalytic Metal on SnO2/WO3 Complex Nanoparticle Sensing Layer. IEEE Sensors Journal, 16, 7581-7585. https://doi.org/10.1109/JSEN.2016.2598349
[14]
Hu, J., et al. (2018) Enhanced Formaldehyde Detection Based on Ni Doping of SnO2 Nanoparticles by One-Step Synthesis. Sensors and Actuators B: Chemical, 263, 120-128. https://doi.org/10.1016/j.snb.2018.02.035
[15]
Xu, K., Zeng, D., Tian, S., Zhang, S. and Xie, C. (2014) Hierarchical Porous SnO2 Micro-Rods Topologically Transferred from Tin Oxalate for Fast Response Sensors to Trace Formaldehyde. Sensors and Actuators B: Chemical, 190, 585-592. https://doi.org/10.1016/j.snb.2013.09.021
[16]
Yang, A.H.M., et al. (2017) Synthesis of La2O3 Doped Zn2SnO4 Hollow Fibers by electrospinning Method and Application in Detecting of Acetone. Applied Surface Science, 425, 585-593. https://doi.org/10.1016/j.apsusc.2017.07.073
[17]
Wang, Q., et al. (2011) Porous SnO2 Nanoflakes with Loose-Packed Structure: Morphology Conserved Transformation from SnS2 Precursor and Application in Lithium Ion Batteries and Gas Sensors. Journal of Physics and Chemistry of Solids, 72, 630-636. https://doi.org/10.1016/j.jpcs.2011.02.004
[18]
Almamoun, O. and Ma, S.Y. (2017) Effect of Mn Doping on the Structural, Morphological and Optical Properties of SnO2 Nanoparticles Prepared by Sol-Gel Method. Materials Letters, 199, 172-175. https://doi.org/10.1016/j.matlet.2017.04.075
[19]
Cheng, L., et al. (2014) Highly Sensitive Acetone Sensors Based on Y-Doped SnO2 Prismatic Hollow Nanofibers Synthesized by Electrospinning. Sensors and Actuators B: Chemical, 200, 181-190. https://doi.org/10.1016/j.snb.2014.04.063
[20]
Zhang, G.H., Chen, Q., Deng, X.Y., Jiao, H.Y., Wang, P.Y. and Gengzang, D.J. (2019) Synthesis and Characterization of In-Doped LaFeO3 Hollow Nanofibers with Enhanced Formaldehyde Sensing Properties. Materials Letters, 236, 229-232. https://doi.org/10.1016/j.matlet.2018.10.062
[21]
Liao, L., et al. (2007) Size Dependence of Gas Sensitivity of ZnO Nanorods. The Journal of Physical Chemistry C, 111, 1900-1903. https://doi.org/10.1021/jp065963k
[22]
Jiang, X.H., et al. (2015) 3D Porous Flower-Like SnO2 Microstructure and Its Gas Sensing Properties for Ethanol. Materials Letters, 159, 5-8. https://doi.org/10.1016/j.matlet.2015.06.050
[23]
Yan, S., Xue, J. and Wu, Q. (2018) Synchronous Synthesis and Sensing Performance of Α-Fe2O3/SnO2 Nanofiber Heterostructures for Conductometric C2H5OH Detection. Sensors and Actuators B: Chemical, 275, 322-331. https://doi.org/10.1016/j.snb.2018.07.079
[24]
Li, R., et al. (2017) Fabrication of Porous SnO2 Nanowires Gas Sensors with Enhanced Sensitivity. Sensors and Actuators B: Chemical, 252, 79-85. https://doi.org/10.1016/j.snb.2017.05.161
[25]
Zhao, C., et al. (2018) Facile Synthesis of SnO2 Hierarchical Porous Nanosheets from Graphene Oxide Sacrificial Scaffolds for High-Performance Gas Sensors. Sensors and Actuators B: Chemical, 258, 492-500. https://doi.org/10.1016/j.snb.2017.11.167
[26]
Zhu, Y., et al. (2019) High-Performance Gas Sensors Based on the WO3-SnO2 Nanosphere Composites. Journal of Alloys and Compounds, 782, 789-795. https://doi.org/10.1016/j.jallcom.2018.12.178
[27]
Xiang, X., Zhu, D. and Wang, D. (2016) Enhanced Formaldehyde Gas Sensing Properties of La-Doped SnO2 Nanoparticles Prepared by Ball-Milling Solid Chemical Reaction Method. Journal of Materials Science: Materials in Electronics, 27, 7425-7432. https://doi.org/10.1007/s10854-016-4718-8
[28]
Ren, H., Zhao, W., Wang, L., Ryu, S.O. and Gu, C. (2015) Preparation of Porous Flower-Like SnO2 Micro/Nano Structures and Their Enhanced Gas Sensing Property. Journal of Alloys and Compounds, 653, 611-618. https://doi.org/10.1016/j.jallcom.2015.09.065
[29]
Li, W., et al. (2015) Enhanced Ethanol Sensing Performance of Hollow ZnO-SnO2 Core-Shell Nanofibers. Sensors and Actuators B: Chemical, 211, 392-402. https://doi.org/10.1016/j.snb.2015.01.090
[30]
Li, Z. and Yi, J. (2017) Enhanced Ethanol Sensing of Ni-Doped SnO2 Hollow Spheres Synthesized by a One-Pot Hydrothermal Method. Sensors and Actuators B: Chemical, 243, 96-103. https://doi.org/10.1016/j.snb.2016.11.136
[31]
Fan, C., et al. (2020) Enhanced H2S Gas Sensing Properties by the Optimization of p-CuO/n-ZnO Composite Nanofibers. Journal of Materials Science, 55, 7702-7714. https://doi.org/10.1007/s10853-020-04569-8
