Catalytic oxidation of methanol on Mo/Al2O3 ...
Document type :
Article dans une revue scientifique
Permalink :
Title :
Catalytic oxidation of methanol on Mo/Al2O3 catalyst: An EPR and Raman/infrared operando spectroscopies study
Author(s) :
Brandhorst, M. [Auteur]
Laboratoire de catalyse de Lille - UMR 8010 [LCL]
Cristol, Sylvain [Auteur]
Laboratoire de catalyse de Lille - UMR 8010 [LCL]
Capron, Mickael [Auteur]
Laboratoire de catalyse de Lille - UMR 8010 [LCL]
Dujardin, Christophe [Auteur]
Laboratoire de catalyse de Lille - UMR 8010 [LCL]
Vezin, Herve [Auteur]
Laboratoire de Chimie Organique et Macromoleculaire [UMR CNRS 8009]
Lebourdon, Gwenaëlle [Auteur]
HORIBA Jobin Yvon SAS [Chili Mazarin]
Payen, Edmond [Auteur]
Laboratoire de catalyse de Lille - UMR 8010 [LCL]
Laboratoire de catalyse de Lille - UMR 8010 [LCL]
Cristol, Sylvain [Auteur]

Laboratoire de catalyse de Lille - UMR 8010 [LCL]
Capron, Mickael [Auteur]

Laboratoire de catalyse de Lille - UMR 8010 [LCL]
Dujardin, Christophe [Auteur]

Laboratoire de catalyse de Lille - UMR 8010 [LCL]
Vezin, Herve [Auteur]

Laboratoire de Chimie Organique et Macromoleculaire [UMR CNRS 8009]
Lebourdon, Gwenaëlle [Auteur]
HORIBA Jobin Yvon SAS [Chili Mazarin]
Payen, Edmond [Auteur]

Laboratoire de catalyse de Lille - UMR 8010 [LCL]
Journal title :
Catalysis Today
Volume number :
113
Pages :
34-39
Publisher :
Elsevier BV
Publication date :
2006-03-30
ISSN :
0920-5861
English keyword(s) :
Raman spectroscopy
Methanol
Redox
Methanol
Redox
HAL domain(s) :
Chimie/Catalyse
English abstract : [en]
The oxidation of methanol has been studied on Mo/Al2O3 catalyst in absence and presence of oxygen. Quasi-simultaneous IR and Raman spectroscopies were used to follow the evolution of the active phase and adsorbed species ...
Show more >The oxidation of methanol has been studied on Mo/Al2O3 catalyst in absence and presence of oxygen. Quasi-simultaneous IR and Raman spectroscopies were used to follow the evolution of the active phase and adsorbed species on the catalyst under reaction conditions. An increase of reduced Mo species on the active phase is observed by Raman spectroscopy in parallel with a deactivation of the redox properties of the catalyst. Complementary EPR experiments show the transformation of MoVI to MoV and its accumulation in absence of oxygen. Selectivity toward oxidation products is drastically affected by the accumulation of MoV species on the active phase. Oxygen addition to the reaction mixture leads to a decrease of the amount of MoV and a partial restoration of the oxidative properties of the catalyst.Show less >
Show more >The oxidation of methanol has been studied on Mo/Al2O3 catalyst in absence and presence of oxygen. Quasi-simultaneous IR and Raman spectroscopies were used to follow the evolution of the active phase and adsorbed species on the catalyst under reaction conditions. An increase of reduced Mo species on the active phase is observed by Raman spectroscopy in parallel with a deactivation of the redox properties of the catalyst. Complementary EPR experiments show the transformation of MoVI to MoV and its accumulation in absence of oxygen. Selectivity toward oxidation products is drastically affected by the accumulation of MoV species on the active phase. Oxygen addition to the reaction mixture leads to a decrease of the amount of MoV and a partial restoration of the oxidative properties of the catalyst.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
Université de Lille
CNRS
CNRS
Collections :
Submission date :
2021-06-18T09:12:00Z
2021-10-12T11:59:42Z
2021-10-12T11:59:42Z