Sintering, catalytic effects and defect chemistry in polycrystalline tin dioxide

Marie-Sophie Dutraive 1, 2 René Lalauze 1, 2 Christophe Pijolat 1, 2
1 SPIN-ENSMSE - Centre Sciences des Processus Industriels et Naturels
2 MICC-ENSMSE - Département Microsystèmes, Instrumentation et Capteurs Chimiques
Abstract : Tin oxide samples are prepared from a powder under various sintering conditions. The morphological properties are studied. The electrical properties are correlated to the structural and textural characteristics, and specially in relation with the grain size. The influence of the gaseous atmosphere (humidity and various gases) on the electrical conductivity is investigated. Some catalytic experiments are performed in order to study the role of the analysed gas, the influence of the sintering conditions and the nature of the electrodes. All these factors modify the electrical conductance. The conductivity power law dependences are carried out in order to study the defect chemistry in tin oxide. The results are interpreted in relation to a theoretical model.
Keywords : Gas sensor Tin oxide Sintering Catalytic effects Defects Polycrystals
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Article dans une revue
Sensors and Actuators B: Chemical, Elsevier, 1995, 26 (1-3), pp.38-44. 〈10.1016/0925-4005(94)01552-S〉
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https://hal-emse.ccsd.cnrs.fr/emse-00433070
Contributeur : Andrée-Aimée Toucas <>
Soumis le : mercredi 18 novembre 2009 - 09:19:47
Dernière modification le : mardi 23 octobre 2018 - 14:36:05

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Marie-Sophie Dutraive, René Lalauze, Christophe Pijolat. Sintering, catalytic effects and defect chemistry in polycrystalline tin dioxide. Sensors and Actuators B: Chemical, Elsevier, 1995, 26 (1-3), pp.38-44. 〈10.1016/0925-4005(94)01552-S〉. 〈emse-00433070〉

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