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Simulation of NO and NO2 sorption–desorption–reduction behaviours on Pt-impregnated HPW supported on TiO2 |
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| Authors: | M. Labaki M. Mokhtari J.F. Brilhac S. Thomas V. Pitchon |
| Affiliation: | aLaboratoire Gestion des Risques et Environnement, Université de Haute-Alsace, 25 rue de Chemnitz, 68200 Mulhouse, France bLaboratoire des Matériaux, Surfaces et Procédés pour la Catalyse (LMSPC), UMR 7515 du CNRS, ECPM, 25 rue Becquerel, 67087 Strasbourg Cedex 2, France |
| Abstract: | NO and NO2 (NOx) sorption, desorption and reduction by hydrogen, carbon monoxide and/or propene were investigated on a TiO2-supported heteropolyacid, 12-tungstophosphoric acid hexahydrate (HPW), promoted by platinum. A model taking into account NOx sorption, desorption and reduction was established. Kinetic constants for NOx sorption, desorption and reduction were extracted by modelling for the investigated range of temperature (170–300 °C). |
| Keywords: | Kinetic modelling NOx-trap NOx sorption and desorption–reduction 1% Pt/HPW/TiO2 |
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