The effect of oxygen vacancies concentration to the gas-sensing propertiesof tin dioxide-doped Sm

Authors
Wang, D Jin, J Xia, DG Ye, Q Long, J
Citation
D. Wang et al., The effect of oxygen vacancies concentration to the gas-sensing propertiesof tin dioxide-doped Sm, SENS ACTU-B, 66(1-3), 2000, pp. 260-262
Citations number
2
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
260 - 262
Database
ISI
SICI code
0925-4005(20000725)66:1-3<260:TEOOVC>2.0.ZU;2-I
Abstract
SnO2 doped with rare earth Sm, containing different amount of oxygen vacanc ies, was prepared by hydrogen reduction method, and characterized by means of X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The study of gas-sensing properties of the sample was carried out. The tested g as was n-C6H14, H-2, C2H5OH, C6H6 and CO, respectively. Experimental result s showed that the specific surface area of sample increases with the amount of oxygen vacancies, and the gas-sensing properties of Sm/SnO2 vary with t he amount of oxygen vacancies, therefore, it is possible to improve gas-sen sing properties of doped SnO2 by controlling its oxygen vacancy. (C) 2000 E lsevier Science S.A. All rights reserved.