Calorimetric Study of Interaction Between Oxygen and β-Al2O3, β-Al2O3+Au and β-Al2O3+Pt

Abstract : In an attempt to improve the understanding of the electrochemical effects observed on an original potentiometric gas sensor, interactions of oxygen with the device were investigated. These calorimetric measurements have evidenced the existence of a weakly bounded endothermal oxygen species. Moreover these species may be regarded to be responsible for the electrical response developed by the sensor. Such results, which are in agreement with a previously proposed model, validate the underlying hypothesis and shed light on the role of oxygen in the sensor's responses.
Type de document :
Article dans une revue
Journal of Thermal Analysis and Calorimetry, Springer Verlag (Germany), 2002, 68 (1), pp.15-23
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https://hal-emse.ccsd.cnrs.fr/emse-00432087
Contributeur : Andrée-Aimée Toucas <>
Soumis le : vendredi 13 novembre 2009 - 16:18:09
Dernière modification le : jeudi 11 janvier 2018 - 06:21:23

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  • HAL Id : emse-00432087, version 1

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Nicolas Guillet, Christophe Pijolat, René Lalauze. Calorimetric Study of Interaction Between Oxygen and β-Al2O3, β-Al2O3+Au and β-Al2O3+Pt. Journal of Thermal Analysis and Calorimetry, Springer Verlag (Germany), 2002, 68 (1), pp.15-23. 〈emse-00432087〉

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