A new material based on titanium dioxide modified by tantalum and vanadium has been synthesized. The prepared powders have been deposited to produce gas sensors in the form of thick films through screen-printing technology. The crystalline phase and morphology were examined by XRD and SEM analyses. The results showed that Ta addition inhibited the anatase-to-rutile phase transformation and hindered grain growth during heating, whilst vanadium did the opposite. The sensors have been tested with different gases showing good selectivity; in particular, the samples with greatest content of Ta showed good response to benzene, only slightly influenced by presence of carbon monoxide. © 2004 Elsevier B.V. All rights reserved.

Carotta, M., Guidi, V., Malagù, C., Vendemiati, B., Zanni, A., Martinelli, G., et al. (2005). Vanadium and tantalum-doped titanium oxide (TiTaV): A novel material for gas sensing. SENSORS AND ACTUATORS. B, CHEMICAL, 108(1-2 SPEC. ISS.), 89-96 [10.1016/j.snb.2004.11.070].

Vanadium and tantalum-doped titanium oxide (TiTaV): A novel material for gas sensing

LICOCCIA, SILVIA;DI VONA, MARIA LUISA;TRAVERSA, ENRICO
2005-01-01

Abstract

A new material based on titanium dioxide modified by tantalum and vanadium has been synthesized. The prepared powders have been deposited to produce gas sensors in the form of thick films through screen-printing technology. The crystalline phase and morphology were examined by XRD and SEM analyses. The results showed that Ta addition inhibited the anatase-to-rutile phase transformation and hindered grain growth during heating, whilst vanadium did the opposite. The sensors have been tested with different gases showing good selectivity; in particular, the samples with greatest content of Ta showed good response to benzene, only slightly influenced by presence of carbon monoxide. © 2004 Elsevier B.V. All rights reserved.
2005
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore CHIM/07 - FONDAMENTI CHIMICI DELLE TECNOLOGIE
Settore ING-IND/22 - SCIENZA E TECNOLOGIA DEI MATERIALI
English
Con Impact Factor ISI
titanium oxide
SEMICONDUCTOR OXIDES
GAS SENSORS
Carotta, M., Guidi, V., Malagù, C., Vendemiati, B., Zanni, A., Martinelli, G., et al. (2005). Vanadium and tantalum-doped titanium oxide (TiTaV): A novel material for gas sensing. SENSORS AND ACTUATORS. B, CHEMICAL, 108(1-2 SPEC. ISS.), 89-96 [10.1016/j.snb.2004.11.070].
Carotta, M; Guidi, V; Malagù, C; Vendemiati, B; Zanni, A; Martinelli, G; Sacerdoti, M; Licoccia, S; DI VONA, Ml; Traversa, E
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/15196
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