Abstract
Gas monitoring is of great interest due to the critical role gases play in human health and the severe threats they can exhibit to occupational safety. Intense study has been conducted to implement gas sensors with high sensitivity, reliability and long lifetime. Room temperature ionic liquid (RTIL) based electrochemical sensors demonstrate many properties advantageous to these goals. This paper presents a microfabricated gas sensor with an RTIL electrolyte and gold electrode that was characterized for oxygen detection in air. In order to implement fast detection, a porous polytetrafluoroethylene substrate was utilized to increase gas permeability and decrease response time. Furthermore, a transient double potential amperometry (DPA) method was used for electrochemical analysis to greatly reduce measurement time and reverse reaction byproducts that could cause drift. Preliminary results indicate that the RTIL-based electrochemical gas sensor with transient DPA exhibits good sensitivity, linearity and reliability that is promising for practical real-world applications.
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.
