Szczegóły publikacji
Opis bibliograficzny
Long-time stability of Nasicon based carbon dioxide potentiometric gas sensors — Stabilité à long terme des capteurs potentiométriques de dioxyde de carbone à base de Nasicon / Paweł PASIERB, Ryszard GAJERSKI, Stanisław KOMORNICKI, Stanisław KOZIŃSKI, Mieczysław RĘKAS // Annales de Chimie Science des Matériaux ; ISSN 0151-9107. — 2003 — vol. 28 suppl. 1, s. S95–S103. — Bibliogr. s. S103, Abstr., Rés. — 13th French-Polish Seminar on Reactivity of Solids : FPSRS 13 : Cluny, France, September 3–5, 2002
Autorzy (5)
Dane bibliometryczne
| ID BaDAP | 14655 |
|---|---|
| Data dodania do BaDAP | 2003-11-26 |
| Rok publikacji | 2003 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Annales de Chimie, Science des Matériaux |
Abstract
Solid-state potentiometric CO2 sensors were manufactured using Nasicon (Na3Zr2Si2PO12) as a solid electrolyte, (Li-2 or Na-2)CO3-BaCO3 fused carbonate with different compositions as a sensing electrode and porous Pt or either Na2Ti6O13-Na2Ti3O7 or TiO2-Na2Ti6O13 two phase systems as a reference electrode. The electromotive force of the investigated cells was found to be linear with the logarithm of CO2 partial pressure in the range 100 ppm - 12600 ppm of CO2 and in the temperature range 300 degreesC - 500 C. The response time varied between 30 s and 120 s. The sensors showed a reproducible signal during short-time experiments (< 24 h). However, the unstable behaviour was observed during longtime measurements (several weeks) for sensors with either porous Pt or TiO2-Na2Ti6O13 as a reference electrode. A mechanism of sensor operation was considered. The possible explanation of the observed long-time instability of investigated sensors was discussed.
