Catalytic and thermal characterisations of nanosized PdPt / Al2O3 for hydrogen detection
T. Mazingue,M. Lomello-Tafin,M. Passard,C. Hernandez-Rodriguez,L. Goujon,J.-L. Rousset,F. Morfin,and J.-F. Laithier
T. Mazingue
Univ. Savoie, SYMME, 74000 Annecy, France
M. Lomello-Tafin
Univ. Savoie, SYMME, 74000 Annecy, France
M. Passard
Univ. Savoie, SYMME, 74000 Annecy, France
C. Hernandez-Rodriguez
Univ. Savoie, SYMME, 74000 Annecy, France
L. Goujon
Univ. Savoie, SYMME, 74000 Annecy, France
J.-L. Rousset
Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON, CNRS – University of Lyon), 2 avenue Albert Einstein, 69626 Villeurbanne CEDEX, France
F. Morfin
Institut de Recherches sur la Catalyse et l'Environnement de Lyon (IRCELYON, CNRS – University of Lyon), 2 avenue Albert Einstein, 69626 Villeurbanne CEDEX, France
J.-F. Laithier
Comelec SA, Rue de la Paix 129 – 2301 La Chaux-de-Fonds, Switzerland
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In this article, we propose detecting hydrogen (H2) traces at room temperature with nanostructured PdPt/Al2O3 catalysts. We measure the temperature rise during the exothermic oxidation of H2 by the catalyst. An appropriate formulation of about 1 mg of PdPt/Al2O3 leads to reversible thermal responses of 3°C in only 5 s. We show that this active material is a promising candidate for autonomous and reversible passive transducers for H2 sensors working at room temperature in explosive atmospheres.
In this article, we propose detecting hydrogen (H2) traces at room temperature with...
