AMPEROMETRIC SENSORS BASED ON NAFION PROTON CONDUCTOR: A COMPARISON BETWEEN TWO DIFFERENT STRUCTURES |
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| A.Fort, C. Lotti, M. Mugnaini, R.Palombari, S. Rocchi, V.Vignoli |
- Abstract:
- In this work the authors propose the development and the characterization of two NO2 amperometric detection systems, based on two different solid state electrochemical sensors. Both sensors have a Nickel Oxide counter electrode, a Graphite working electrode, and Nafion as protonic conductor. The first detection system exploits a two-electrode sensor that presents satisfactory sensitivity to NO2, a very low cross-response to interfering gases (CO, O2), a short response time, and that requires a simple front-end electronics. Nevertheless, the usage of this sensor is limited to the detection of low NO2 concentrations (below 10 ppm). A similar performance can be obtained by a system based on a three-electrode version of the sensor which can be used in a wider NO2 concentration range, but requires a more complicated front end electronics.
- Download:
- IMEKO-TC4-2008-049.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC4
- Event name:
- Exploring New Frontiers of Instrumentation and Methods for Electrical and Electronic Measurements
- Title:
- XVIth IMEKO TC4 International Symposium on Electrical Measurements and Instrumentation (together with 13th IMEKO TC4 Workshop on ADC Modelling and Testing)
- Place:
- Florence, ITALY
- Time:
- 22 September 2008 - 24 September 2008