Impact of the Pd incorporation method on ...
Type de document :
Article dans une revue scientifique: Article original
URL permanente :
Titre :
Impact of the Pd incorporation method on the kinetics of the CH<sub>4</sub>/O<sub>2</sub> reaction on Natural-Gas-Vehicle model Pd-doped LaMnO<sub>3</sub> catalysts
Auteur(s) :
Zheng, Yuanshuang [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Decoster, Amaury [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Dhainaut, Fabien [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Heyte Dyshlovenko, Svetlana [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Marinova, Maya [Auteur]
Institut Michel Eugène Chevreul - FR 2638 [IMEC]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Granger, Pascal [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Decoster, Amaury [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Dhainaut, Fabien [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Heyte Dyshlovenko, Svetlana [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Marinova, Maya [Auteur]
Institut Michel Eugène Chevreul - FR 2638 [IMEC]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Granger, Pascal [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Titre de la revue :
Journal of Catalysis
Nom court de la revue :
J. Catal.
Numéro :
430
Pagination :
-
Date de publication :
2024-03-21
ISSN :
0021-9517
Mot(s)-clé(s) en anglais :
Methane combustion
NGV three-way catalyst
Palladium
Perovskite
Kinetics
NGV three-way catalyst
Palladium
Perovskite
Kinetics
Discipline(s) HAL :
Chimie
Résumé en anglais : [en]
The kinetics of the CH4/O2 reaction was studied in lean conditions on Natural-Gas-Vehicle Pd-doped LaMnO3 catalysts. The impact of the method for Pd incorporation, sol–gel vs. impregnation, has been examined. The calcination ...
Lire la suite >The kinetics of the CH4/O2 reaction was studied in lean conditions on Natural-Gas-Vehicle Pd-doped LaMnO3 catalysts. The impact of the method for Pd incorporation, sol–gel vs. impregnation, has been examined. The calcination temperature to obtain the perovskite structure turned out to be a key to determine the strength of the interaction between Pd and LaMnO3. Steady-state kinetic measurements at 400 °C have been modeled according to a single site or a dual site reaction mechanism representative of the cooperation between Pd and surface lattice oxygen species supplied by the support material. Impregnated catalysts are found sensitive to particle sintering inducing a deterioration of the metal-support interface. On the contrary, aging leads to strenghening of the metal-support interaction on sol–gel Pd catalysts which promotes methane conversion notably near three-way operating conditions.Lire moins >
Lire la suite >The kinetics of the CH4/O2 reaction was studied in lean conditions on Natural-Gas-Vehicle Pd-doped LaMnO3 catalysts. The impact of the method for Pd incorporation, sol–gel vs. impregnation, has been examined. The calcination temperature to obtain the perovskite structure turned out to be a key to determine the strength of the interaction between Pd and LaMnO3. Steady-state kinetic measurements at 400 °C have been modeled according to a single site or a dual site reaction mechanism representative of the cooperation between Pd and surface lattice oxygen species supplied by the support material. Impregnated catalysts are found sensitive to particle sintering inducing a deterioration of the metal-support interface. On the contrary, aging leads to strenghening of the metal-support interaction on sol–gel Pd catalysts which promotes methane conversion notably near three-way operating conditions.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Projet ANR :
Établissement(s) :
Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois
CNRS
Centrale Lille
ENSCL
Univ. Artois
Collections :
Date de dépôt :
2024-05-25T21:08:36Z
2024-06-05T07:42:12Z
2024-06-05T07:42:12Z