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Titolo:
Cerium oxide/SnO2-based semiconductor gas sensors with improved sensitivity to CO
Autore:
Khodadadi, A; Mohajerzadeh, SS; Mortazavi, Y; Miri, AM;
Indirizzi:
Univ Teheran, Fac Engn, Dept Chem Engn, Tehran, Iran Univ Teheran TehranIran eheran, Fac Engn, Dept Chem Engn, Tehran, Iran Univ Teheran, Fac Engn, Dept Elect Engn, Tehran, Iran Univ Teheran Tehran Iran heran, Fac Engn, Dept Elect Engn, Tehran, Iran
Titolo Testata:
SENSORS AND ACTUATORS B-CHEMICAL
fascicolo: 3, volume: 80, anno: 2001,
pagine: 267 - 271
SICI:
0925-4005(200112)80:3<267:COSGSW>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
THIN-FILM; RAMAN; NO;
Keywords:
SnO2; combustible gas; carbon monoxide; gas sensor; cerium oxide;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
12
Recensione:
Indirizzi per estratti:
Indirizzo: Khodadadi, A Univ Teheran, Fac Engn, Dept Chem Engn, POB 14395-515, Tehran, Iran Univ Teheran POB 14395-515 Tehran Iran 95-515, Tehran, Iran
Citazione:
A. Khodadadi et al., "Cerium oxide/SnO2-based semiconductor gas sensors with improved sensitivity to CO", SENS ACTU-B, 80(3), 2001, pp. 267-271

Abstract

SnO2-based semiconductor gas sensors have been successfully fabricated andtested for detecting carbon monoxide and methane. The sensitivity and selectivity of the sensors are tailored by incorporation of different additivessuch as platinum and cerium oxide. While platinum enhances the sensor response to CH4, ceria suppresses its sensitivity in favor of carbon monoxide. The effect of operating temperature on the performance of sensors is reported. Addition of 10% cerium oxide in the SnO2 sample leads to an insignificant response to methane even at an elevated temperature of 450 degreesC, while its response to CO remains intact. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/09/20 alle ore 13:12:14