AMMONIA-SENSING CHARACTERISTICS OF PT-DOPED CDSNO3 SEMICONDUCTING CERAMIC SENSOR

Authors
ZHANG TS SHEN YS ZHANG RF LIU XQ
Citation
Ts. Zhang et al., AMMONIA-SENSING CHARACTERISTICS OF PT-DOPED CDSNO3 SEMICONDUCTING CERAMIC SENSOR, Materials letters, 27(4-5), 1996, pp. 161-164
Citations number
16
Categorie Soggetti
Material Science","Physics, Applied
Journal title
Materials letters → ACNP
ISSN journal
0167577X
Volume
27
Issue
4-5
Year of publication
1996
Pages
161 - 164
Database
ISI
SICI code
0167-577X(1996)27:4-5<161:ACOPCS>2.0.ZU;2-V
Abstract
The initial experimental results concerning the ammonia-sensing proper ties of Pt doped mixtures of alpha- and beta-CdSnO3 are reported. The mixtures of different beta/alpha ratios can be obtained by calcining t he CdSnO3 powder precursor prepared by coprecipitation under different experimental conditions. As compared with that of other samples, howe ver, the 1 wt% Pt doped mixture with beta/alpha ratio of 2.0 exhibits a very high sensitivity and selectivity to NH3 gas, moderate resistanc e and good response characteristic, as well as low operating temperatu re (240 degrees C) for this application.