Improved oxygen-sensing characteristics based on (TiO2)(x)(NbO2.5)(1-x) composite

Authors
Jun, P Liu, DR
Citation
P. Jun et Dr. Liu, Improved oxygen-sensing characteristics based on (TiO2)(x)(NbO2.5)(1-x) composite, SENS ACTU-B, 66(1-3), 2000, pp. 213-215
Citations number
6
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
SENSORS AND ACTUATORS B-CHEMICAL
ISSN journal
09254005 → ACNP
Volume
66
Issue
1-3
Year of publication
2000
Pages
213 - 215
Database
ISI
SICI code
0925-4005(20000725)66:1-3<213:IOCBO(>2.0.ZU;2-Y
Abstract
The composites formed between TiO2 and Nb2O5 tended to give better oxygen-s ensing characteristics than the component oxides themselves. On the Nb2O5-r ich side, the composite (TiO2)(x)(NbO2.5)(1-x), with x between O and 0.06, gave higher sensitivity to oxygen than Nb2O5, whereas the composite with x = 0.8 gave higher sensitivity than TiO2. These composites showed larger cha nges in conductivity than the component oxides when the air excess ratio (l ambda) was changed between 0.98 and 1.02. The temperature dependence could also be improved with the composites. (C) 2000 Elsevier Science S.A. All ri ghts reserved.