Title :

Beneficial Effect of W Incorporation in Supported Mo-based Catalysts for the HDO of m-Cresol

Author(s) :

Farah, Bertha [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Lancelot, Christine [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Blanchard, Pascal [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Richard, F. [Auteur]
Institut de chimie des milieux et matériaux de Poitiers [UMR 7285] [IC2MP [Poitiers]]
Lamonier, Carole [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Journal title :

ChemCatChem

Abbreviated title :

ChemCatChem

Volume number :

15

Pages :

-

Publication date :

2023-02-26

ISSN :

1867-3880

English keyword(s) :

Hydrodeoxygenation
MoOx reducibility
Mo5+
support effect
Mo-W synergy

HAL domain(s) :

Chimie/Catalyse

English abstract : [en]

The hydrodeoxygenation (HDO) of m-cresol was investigated at 340 °C under 30 bar as total pressure over molybdenum oxide-based catalysts. 10 wt.% Mo were first deposited on various supports (ZrO2, TiO2, Al2O3 and COK12). ...
Show more >The hydrodeoxygenation (HDO) of m-cresol was investigated at 340 °C under 30 bar as total pressure over molybdenum oxide-based catalysts. 10 wt.% Mo were first deposited on various supports (ZrO2, TiO2, Al2O3 and COK12). The use of oxophilic ZrO2 and TiO2 supports allowed to obtain the highest HDO catalytic performances. This result could be in link with the reducibility of Mo, which was found to be dependent on the support nature. Several catalysts containing both W and Mo in oxide phase supported on ZrO2 were then prepared using various heteropolyacids as precursors (H4SiMoxW12-xO40 with x=0, 3, 6, 9 and 12). A synergy was observed between Mo and W and the best catalytic performance was obtained for SiMo9W3/ZrO2. More importantly, the presence of W improved the reducibility of Mo6+ to Mo5+ species, which quantity was correlated to catalytic activity suggesting that Mo5+ could be the active phase in HDO.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Research team(s) :

Catalyse pour l’énergie et la synthèse de molécules plateforme (CEMOP)

Submission date :

2024-01-20T00:44:08Z
2024-02-09T09:44:04Z