Abstract
This study accomplished the one-pot hydrothermal synthesis of cubic WO3 nanocubes both in their pure form and doped with In (3 wt%, 5 wt%, and 7 wt%). The morphological and microstructural features of these cubic nanoblocks were assessed using various techniques including XRD, SEM, TEM, XPS, and BET analysis. Gas sensing tests were conducted on pure and In-doped WO3 cubic nanoblocks, using triethylamine (TEA) as the test gas. Among all tested samples, the 5% In-WO3 sensor showed the highest response to 50 ppm TEA (Ra/Rg = 11.2). The gas sensor additionally demonstrates rapid responses and recovery times, long-term stability, and outstanding selectivity, all of which are crucial for the construction of effective TEA gas sensors. The improvement of gas sensing performance may be due to the increase of oxygen vacancies and surface adsorbed oxygen after In-doping and the large specific surface area.
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.
