ChemInform Abstract: Sodium Ion Conductor Based Sensor Attached with NaNO2 for Amperometric Detection of NO2.

✍ Scribed by N. MIURA; M. IIO; G. LU; N. YAMAZOE

• Publisher: John Wiley and Sons
• Year: 2010
• Weight: 27 KB
• Volume: 28
• Category: Article
• ISSN: 0931-7597
• DOI: 10.1002/chin.199706010

✦ Synopsis

Sodium Ion Conductor Based Sensor Attached with NaNO2 for Amperometric Detection of NO2.

-An amperometric NO2 sensing device based on NASICON attached with NaNO2 auxillary layers on the sensing and counterelectrodes can detect NO2 more precisely at 200 • C in a limited concentration range as compared to an NaNO3-attached device. An almost linear relationship between the increments of current from the air level and the NO2 concentration is seen only for the NaNO2-attached device in the range 0 to 80 ppm. This device exhibits a high selectivity for NO2 which usually coexists with other gases in combustion exhausts. The sensing mechanism is briefly discussed.