Abstract
Ethanol sensors with effective and selective sensitivity are extensively used by traffic police to detect drunken drivers, in wine industries for controlling the fermentation process, food package testing, different medical applications etc. Orthorhombic phase pure α-MoO3 nanoparticles were synthesized via facile sol-gel technique to ethanol sensor. It was observed that the gas sensing response of the sample towards 100 ppm of ethanol vapour is 59% at 350 oC. The response and the recovery time of the gas sensor towards 100 ppm ethanol vapour are found to be 34 s and 70 s, respectively. The main obstacle for a gas sensor to be an excellent breath analyser is to remain insensitive toward the main interfering agent of exhaling human breath i.e. moisture. Prepared sensor is highly selective and shows almost no response toward saturated moisture.
Highlights
Nowadays due to the increase in environmental pollution and health hazards there is an increase in the demand for efficient chemical sensors to monitor environment (Wang et al, 2011a; Chao et al, 2012; Yang et al, 2013)
All the prominent peaks matched well with standard data (JCPDS card no. 35-0609) which confirms the formation of orthorhombic phase pure α − MoO3
We have successfully grown pure α-MoO3 nanoparticles using the facile sol-gel technique
Summary
Nowadays due to the increase in environmental pollution and health hazards there is an increase in the demand for efficient chemical sensors to monitor environment (Wang et al, 2011a; Chao et al, 2012; Yang et al, 2013). Metal oxide semiconducting nanoparticles are considered to be the most efficient and promising material for gas sensors due to the presence of higher oxygen vacancies and surface area (Philip et al, 2006; Brezesinski et al, 2010; Greiner et al, 2013). Work by Zadeh et al delineates that Zn doped MoO3 shows only 20% sensitivity toward 100 ppm of ethanol (Mousavi-Zadeh and Rahman, 2018).
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
