Novel TixSn1-xO2 (0.3á<áxá<á0.9) nanostructured oxides for gas sensing, have been synthesized and characterized through a great variety of investigation techniques, such as electron microscopy, X-ray diffraction, specific surface area measurements, UV-vis and IR spectroscopies, photoluminescence emission spectra and finally electrical measurements. All structural investigations showed solid solutions of the two single oxides; only the oxide with xá=á0.7 showed a beginning of spinodal decomposition revealed by XRD. Surprisingly, the samples with xá=á0.3 and 0.5 exhibited carbon monoxide response much higher than for pure SnO2. Investigations on this point, performed through spectroscopic measurements in the presence of CO, suggest a different behaviour of the solid solutions from the single oxides

(Ti, Sn)O2 binary solid solution for gas sensing: spectroscopic, optical and transport properties / Carotta, M. C.; Gherardi, S; Guidi, V; Malagu', C; Martinelli, G; Vendemiati, B; Sacerdoti, M; Ghiotti, G; Morandi, S; Bismuto, A; Maddalena, Pasqualino; Setaro, Antonio. - In: SENSORS AND ACTUATORS. B, CHEMICAL. - ISSN 0925-4005. - STAMPA. - 130:(2008), pp. 38-45. [10.1016/j.snb.2007.07.112]

(Ti, Sn)O2 binary solid solution for gas sensing: spectroscopic, optical and transport properties

MADDALENA, PASQUALINO;SETARO, ANTONIO
2008

Abstract

Novel TixSn1-xO2 (0.3á<áxá<á0.9) nanostructured oxides for gas sensing, have been synthesized and characterized through a great variety of investigation techniques, such as electron microscopy, X-ray diffraction, specific surface area measurements, UV-vis and IR spectroscopies, photoluminescence emission spectra and finally electrical measurements. All structural investigations showed solid solutions of the two single oxides; only the oxide with xá=á0.7 showed a beginning of spinodal decomposition revealed by XRD. Surprisingly, the samples with xá=á0.3 and 0.5 exhibited carbon monoxide response much higher than for pure SnO2. Investigations on this point, performed through spectroscopic measurements in the presence of CO, suggest a different behaviour of the solid solutions from the single oxides
2008
(Ti, Sn)O2 binary solid solution for gas sensing: spectroscopic, optical and transport properties / Carotta, M. C.; Gherardi, S; Guidi, V; Malagu', C; Martinelli, G; Vendemiati, B; Sacerdoti, M; Ghiotti, G; Morandi, S; Bismuto, A; Maddalena, Pasqualino; Setaro, Antonio. - In: SENSORS AND ACTUATORS. B, CHEMICAL. - ISSN 0925-4005. - STAMPA. - 130:(2008), pp. 38-45. [10.1016/j.snb.2007.07.112]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/106137
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