Solid-state amperometric NO{sub x} sensor using sodium ion conductor
- Kyushu Univ., Fukuoka (Japan)
There has been a growing awareness of the need for in situ NO{sub x} (NO and NO{sub 2}) monitoring in combustion exhausts and environmental atmosphere. Several solid-electrolyte NO{sub x} sensors have so far been proposed and examined. These sensor devices, mostly of potentiometric type fabricated by using a couple of solid electrolyte/nitrate auxiliary phase (Type III). The authors have reported that a NASICON (sodium ion conductor)/nitrite couple shows excellent sensing characteristics, especially to NO{sub 2}. However, there has been little work on solid-state amperometric NO{sub x} sensors though it is known that amperometry, if properly fabricated, can give more precise concentration data in a limited concentration range than potentiometry. In this study, an attempt was made for an amperometric NO{sub x} sensor device using a NASICON/nitrite (or nitrate) couple.
- OSTI ID:
- 441262
- Report Number(s):
- CONF-960782--
- Country of Publication:
- United States
- Language:
- English
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