A TIP-TYPE CARBON-DIOXIDE GAS-SENSOR PROBE BASED ON LITHIUM AND OXIDEIONIC CONDUCTORS

Authors
IMANAKA N HIROTA Y ADACHI G
Citation
N. Imanaka et al., A TIP-TYPE CARBON-DIOXIDE GAS-SENSOR PROBE BASED ON LITHIUM AND OXIDEIONIC CONDUCTORS, Sensors and actuators. B, Chemical, 25(1-3), 1995, pp. 380-382
Citations number
21
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
Sensors and actuators. B, Chemical → ACNP
ISSN journal
09254005
Volume
25
Issue
1-3
Year of publication
1995
Pages
380 - 382
Database
ISI
SICI code
0925-4005(1995)25:1-3<380:ATCGPB>2.0.ZU;2-V
Abstract
A tip-type carbon dioxide gas-sensor probe with a heater element is se t up by using the combination of a lithium ionic conductor (LiTi2(PO4) (3)-+0.2Li(3)PO(4)) and oxide ionic conductors. Three types of oxide i onic conductors, Bi2O3-Y2O3 (3:1), CeO2-Gd2O3 (8:1) and ZrO2-Ln(2)O(3) (9:1) (Ln:Y, Sc) are used. The sensor output with the zirconia- or bi smuth oxide-based conductor agrees well with the Nernst relation. The tip-type probe can detect the CO2 concentration exactly for contents h igher than 1000 ppm, even in an atmosphere containing up to 30 vol.% o f water vapour.