Abstract
Considering the short-term exposure limit of SO 2 to be 5 ppm, we first time report that semiconductor sensors based on vanadium doped SnO 2 can be used for SO 2 leak detection because of their good sensitivity towards SO 2 at concentrations down to 5 ppm. Such sensors are quite selective in presence of other gases like carbon monoxide, methane and butane. The high sensitivity of vanadium doped tin dioxide towards SO 2 may be understood by considering the oxidation of sulfur dioxide to sulfur trioxide on SnO 2 surface through redox cycles of vanadium–sulfur–oxygen adsorbed species.
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.
