%0 Journal Article %T Pure SnO2 Gas Sensor with High Sensitivity and Selectivity towards C2H5OH %A Abeer Alhadi %A Shuyi Ma %A Tingting Yang %A Shitu Pei %A Pengdou Yun %A Khalid Ahmed Abbakar %A Qianqian Zhang %A Nina Ma %A Manahil H. Balal %A Hamouda Adam Hamouda %A Khalid Mohammed %J Advances in Nanoparticles %P 66-74 %@ 2169-0529 %D 2021 %I Scientific Research Publishing %R 10.4236/anp.2021.102005 %X 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 energy dispersive 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 27 s) and a low detection limit of 5 ppm, also it have response/recovery times about (4 s, 2 s) respectively. The distinctive sensing properties of SnO₂ sensor make it a promising candidate for ethanol detection. Furthermore, the gas-sensing mechanism have been %K Hydrothermal Method %K Nanoparticles %K Ethanol %K SnO< %K sub> %K 2< %K /sub> %K Gas Sensor %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=108988