How does the balance of metal and acid ...
Type de document :
Article dans une revue scientifique: Article original
URL permanente :
Titre :
How does the balance of metal and acid functions on the benchmark Mo/ZSM-5 catalyst drive the Methane dehydroaromatization reaction?
Auteur(s) :
Beuque, Antoine [Auteur]
Institut de chimie des milieux et matériaux de Poitiers [UMR 7285] [IC2MP [Poitiers]]
Hu, Hao [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Berrier, Elise [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Sachse, Alexander [Auteur]
Institut de chimie des milieux et matériaux de Poitiers [UMR 7285] [IC2MP [Poitiers]]
Paul, Jean-Francois [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Pinard, Ludovic [Auteur]
Institut de chimie des milieux et matériaux de Poitiers [UMR 7285] [IC2MP [Poitiers]]
Institut de chimie des milieux et matériaux de Poitiers [UMR 7285] [IC2MP [Poitiers]]
Hu, Hao [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Berrier, Elise [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Sachse, Alexander [Auteur]
Institut de chimie des milieux et matériaux de Poitiers [UMR 7285] [IC2MP [Poitiers]]
Paul, Jean-Francois [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Pinard, Ludovic [Auteur]
Institut de chimie des milieux et matériaux de Poitiers [UMR 7285] [IC2MP [Poitiers]]
Titre de la revue :
Catalysis Today
Nom court de la revue :
Catalysis Today
Éditeur :
Elsevier BV
Date de publication :
2022-06
ISSN :
0920-5861
Mot(s)-clé(s) en anglais :
Zeolite
Methane dehydroaromatization
Molybdenum species
Brønsted acidity
Catalytic activity
Deactivation
Methane dehydroaromatization
Molybdenum species
Brønsted acidity
Catalytic activity
Deactivation
Discipline(s) HAL :
Chimie/Chimie théorique et/ou physique
Résumé en anglais : [en]
Among all the proposed catalytic systems (new supports, synthesis post-treatment, change of transition metal, multi-metallic catalysts, etc.) for the methane dehydroaromatization, the initial Mo/ZSM-5 has remained one of ...
Lire la suite >Among all the proposed catalytic systems (new supports, synthesis post-treatment, change of transition metal, multi-metallic catalysts, etc.) for the methane dehydroaromatization, the initial Mo/ZSM-5 has remained one of the best suitable catalysts, despite its lack of deep understanding. The catalyst evolves throughout four successive stages: calcination, activation, induction, and deactivation. By studying the balance influence between the acid and metal functions throughout its lifetime, the molybdenum and carbon species could be localized, quantified, and identified as well as their roles. An optimal compromise was then established where the catalyst is composed of 4 wt% Mo with the highest possible acidity. Below these targets, the catalysts with minimal Mo content and low Brønsted acidity display poor catalytic performances, whereas zeolite amorphization occurs during the early stages of the reaction independently of the zeolite acidity once the Mo loading exceeds the optimal value.Lire moins >
Lire la suite >Among all the proposed catalytic systems (new supports, synthesis post-treatment, change of transition metal, multi-metallic catalysts, etc.) for the methane dehydroaromatization, the initial Mo/ZSM-5 has remained one of the best suitable catalysts, despite its lack of deep understanding. The catalyst evolves throughout four successive stages: calcination, activation, induction, and deactivation. By studying the balance influence between the acid and metal functions throughout its lifetime, the molybdenum and carbon species could be localized, quantified, and identified as well as their roles. An optimal compromise was then established where the catalyst is composed of 4 wt% Mo with the highest possible acidity. Below these targets, the catalysts with minimal Mo content and low Brønsted acidity display poor catalytic performances, whereas zeolite amorphization occurs during the early stages of the reaction independently of the zeolite acidity once the Mo loading exceeds the optimal value.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois
CNRS
Centrale Lille
ENSCL
Univ. Artois
Collections :
Équipe(s) de recherche :
Modélisation et spectroscopies (MODSPEC)
Date de dépôt :
2022-06-09T13:32:51Z
2022-06-16T11:49:55Z
2022-06-16T11:49:55Z
Fichiers
- BEUQUE22_CATTOD.pdf
- Version finale acceptée pour publication (postprint)
- Accès libre
- Accéder au document