Abstract
Triethylamine (TEA) is a volatile organic compound, widely used in production and life. But as a strong irritating and flammable gas, it is a serious threat to people's life safety, so the development of high-performance TEA gas sensor is of great significance to human life and production. In this work, pure WO3 and WO3/SnO2 composite nanofibers were prepared by electrospinning method. The morphology and microstructure of the obtained samples were characterized by SEM, XRD, XPS, PL, etc. Then the gas sensitivity of the samples was studied. The results show that both pure WO3 nanofibers and composite nanofibers have good selectivity for TEA. But compared with pure WO3 nanofibers, WO3/SnO2 nanofibers have higher response, faster response/recovery time (14 s/22 s) and better stability. The optimal temperature is 260 °C, 20 °C lower than that of pure WO3 nanofibers, and the response to 100 ppm TEA at this temperature is about 26, which is nearly 1 times higher than that of pure WO3 nanofibers. The improvement of gas-sensitive performance is mainly attributed to the successful construction of heterojunctions to improve electron transport efficiency and the optimization of morphology and structure through the composite.
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.
