SO2 SENSING CHARACTERISTICS OF NASICON ELECTROLYTES

Authors
CHOI SD CHUNG WY LEE DD
Citation
Sd. Choi et al., SO2 SENSING CHARACTERISTICS OF NASICON ELECTROLYTES, Sensors and actuators. B, Chemical, 36(1-3), 1996, pp. 263-266
Citations number
7
Categorie Soggetti
Electrochemistry,"Chemistry Analytical","Instument & Instrumentation
Journal title
Sensors and actuators. B, Chemical → ACNP
ISSN journal
09254005
Volume
36
Issue
1-3
Year of publication
1996
Pages
263 - 266
Database
ISI
SICI code
0925-4005(1996)36:1-3<263:SSCONE>2.0.ZU;2-J
Abstract
The SO2 sensing characteristics of the Nasicon electrolyte cells Pt,SO 2,O-2(I) \ Na2SO4 \ Nasicon \ O-2(II) in air, Pt and Pt,SO2,O-2(I) \ N a2SO4-(BaSO4) \ Nasicon \ Na2SiO3,Pt have been studied in 5-98 ppm SO2 concentration range at 300-550 degrees C. The cell with the O-2 refer ence electrode was very unstable. However, good agreement between the measured and calculated slopes in the Nernst equation was obtained for the cell with the Na2SiO3 solid reference electrode. The addition of 40 mol% BaSO4 to the Na2SO4 auxiliary electrolyte could eliminate the water vapor effect under the wet SO2 atmosphere.