Effect of oxomolybdate species dispersion ...
Type de document :
Article dans une revue scientifique
DOI :
URL permanente :
Titre :
Effect of oxomolybdate species dispersion on direct methanol oxidation to dimethoxymethane over MoOx/TiO2catalysts
Auteur(s) :
Faye, Jérémy [Auteur]
Capron, Mickael [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Takahashi, Atsushi [Auteur]
Paul, Sébastien [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Centrale Lille
Katryniok, Benjamin [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Fujitani, Tadahiro [Auteur]
Dumeignil, Franck [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Capron, Mickael [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Takahashi, Atsushi [Auteur]
Paul, Sébastien [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Centrale Lille
Katryniok, Benjamin [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Fujitani, Tadahiro [Auteur]
Dumeignil, Franck [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Titre de la revue :
Energy Science & Engineering
Numéro :
3
Pagination :
115-125
Date de publication :
2015
Mot(s)-clé(s) en anglais :
catalyst
dimethoxymethane
methanol
molybdenum
oxidation
titania
dimethoxymethane
methanol
molybdenum
oxidation
titania
Discipline(s) HAL :
Chimie/Catalyse
Résumé en anglais : [en]
The one‐step selective oxidation of methanol to dimethoxymethane (DMM) was demonstrated over titania‐supported molybdenum oxide catalysts, containing different amounts of molybdenum and prepared using two different ...
Lire la suite >The one‐step selective oxidation of methanol to dimethoxymethane (DMM) was demonstrated over titania‐supported molybdenum oxide catalysts, containing different amounts of molybdenum and prepared using two different impregnation techniques, namely wet impregnation and incipient wetness impregnation. The corresponding catalysts exhibited both acidic and redox properties, which are necessary for the oxidation of methanol to formaldehyde with subsequent condensation of the latter with excess methanol to finally yield DMM. The formation of well‐dispersed polyoxomolybdate species on the catalyst surface was evidenced using IR‐Raman, X‐ray diffraction, and nitrogen physisorption. Varying the amount of these polyoxomolydate species was associated with a modulation of the acidic and redox properties, as shown by NH3‐TPD and H2‐TPR. With respect to the catalytic performances, the best balance between acid and redox properties was observed over the samples containing 8 wt.% Mo, which corresponds to a theoretical MoOx species coverage close to a monolayer.Lire moins >
Lire la suite >The one‐step selective oxidation of methanol to dimethoxymethane (DMM) was demonstrated over titania‐supported molybdenum oxide catalysts, containing different amounts of molybdenum and prepared using two different impregnation techniques, namely wet impregnation and incipient wetness impregnation. The corresponding catalysts exhibited both acidic and redox properties, which are necessary for the oxidation of methanol to formaldehyde with subsequent condensation of the latter with excess methanol to finally yield DMM. The formation of well‐dispersed polyoxomolybdate species on the catalyst surface was evidenced using IR‐Raman, X‐ray diffraction, and nitrogen physisorption. Varying the amount of these polyoxomolydate species was associated with a modulation of the acidic and redox properties, as shown by NH3‐TPD and H2‐TPR. With respect to the catalytic performances, the best balance between acid and redox properties was observed over the samples containing 8 wt.% Mo, which corresponds to a theoretical MoOx species coverage close to a monolayer.Lire moins >
Langue :
Anglais
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
ENSCL
Université de Lille
CNRS
Centrale Lille
Univ. Artois
Université de Lille
CNRS
Centrale Lille
Univ. Artois
Collections :
Équipe(s) de recherche :
Valorisation des alcanes et de la biomasse (VAALBIO)
Date de dépôt :
2019-09-24T14:34:39Z
2020-09-25T09:48:37Z
2020-09-25T09:48:37Z
Fichiers
- DMM_MoTi.pdf
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