Pure SnO2 Gas Sensor with High Sensitivity and Selectivity towards C2H5OH
Open Access
- 1 January 2021
- journal article
- research article
- Published by Scientific Research Publishing, Inc. in Advances in Nanoparticles
- Vol. 10 (02), 66-74
- https://doi.org/10.4236/anp.2021.102005
Abstract
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 examined.Keywords
This publication has 31 references indexed in Scilit:
- Synthesis, characterization and DFT studies of zinc-doped copper oxide nanocrystals for gas sensing applicationsJournal of Materials Chemistry A, 2016
- Enhanced formaldehyde gas sensing properties of La-doped SnO2 nanoparticles prepared by ball-milling solid chemical reaction methodJournal of Materials Science: Materials in Electronics, 2016
- 3D porous flower-like SnO2 microstructure and its gas sensing properties for ethanolMaterials Letters, 2015
- Enhanced ethanol sensing performance of hollow ZnO–SnO2 core–shell nanofibersSensors and Actuators B: Chemical, 2015
- Integration of individual TiO2 nanotube on the chip: Nanodevice for hydrogen sensingPhysica Status Solidi (RRL) – Rapid Research Letters, 2015
- Highly sensitive acetone sensors based on Y-doped SnO2 prismatic hollow nanofibers synthesized by electrospinningSensors and Actuators B: Chemical, 2014
- Hierarchical porous SnO2 micro-rods topologically transferred from tin oxalate for fast response sensors to trace formaldehydeSensors and Actuators B: Chemical, 2014
- Enhancement in ethanol sensing response by surface activation of ZnO with SnO2Materials Research Bulletin, 2012
- Porous SnO2 nanoflakes with loose-packed structure: Morphology conserved transformation from SnS2 precursor and application in lithium ion batteries and gas sensorsJournal of Physics and Chemistry of Solids, 2011
- Size Dependence of Gas Sensitivity of ZnO NanorodsThe Journal of Physical Chemistry C, 2007