PH SENSORS WITH SAMARIUM STABILIZED CERIA MEMBRANE

Authors
SHUK P RAMANUJACHARY KV GREENBLATT M
Citation
P. Shuk et al., PH SENSORS WITH SAMARIUM STABILIZED CERIA MEMBRANE, Solid state ionics, 85(1-4), 1996, pp. 257-263
Citations number
15
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical
Journal title
Solid state ionics → ACNP
ISSN journal
01672738
Volume
85
Issue
1-4
Year of publication
1996
Pages
257 - 263
Database
ISI
SICI code
0167-2738(1996)85:1-4<257:PSWSSC>2.0.ZU;2-D
Abstract
New metal-oxide type pH sensors with a direct solid state membrane con tact have been developed and tested. Performance was demonstrated at c lose to ambient temperature with thin, 0.3-0.5 mm stabilized cerium ox ide Ce0.80Sm0.20O1.9-x membranes. The pH sensors responded reproducibl y to the acidity changes of the analyte in the range of pH 3-10. The r esponse time is 1 to 2 minutes for 95% response. pH sensors with thin ceria membrane can be used also to follow acid-base titrations.