MnOx-loaded mesoporous silica for the ...
Type de document :
Article dans une revue scientifique: Article original
DOI :
URL permanente :
Titre :
MnOx-loaded mesoporous silica for the catalytic oxidation of formaldehyde. Effect of the melt infiltration conditions on the activity - stability behavior
Auteur(s) :
Rochard, Guillaume [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Ciotonea, Carmen [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Ungureanu, Adrian [Auteur]
"Gheorghe Asachi" Technical University of Iasi [TUIASI]
Giraudon, Jean-Marc [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
royer, sebastien [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Lamonier, Jean-Francois [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Ciotonea, Carmen [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Ungureanu, Adrian [Auteur]
"Gheorghe Asachi" Technical University of Iasi [TUIASI]
Giraudon, Jean-Marc [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
royer, sebastien [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Lamonier, Jean-Francois [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Titre de la revue :
ChemCatChem
Numéro :
12
Pagination :
1664-1675
Date de publication :
2020-02-12
ISSN :
1867-3880
Mot(s)-clé(s) :
SBA-15
Formaldehyde
VOC catalytic oxidation
Melt infiltration
Manganese oxides
Formaldehyde
VOC catalytic oxidation
Melt infiltration
Manganese oxides
Discipline(s) HAL :
Chimie/Catalyse
Résumé en anglais : [en]
Conventional melt infiltration (over calcined SBA-15 silica support) and optimized melt infiltration (over surfactant-containing SBA-15 support) were used for the first time to prepare MnOx nanoparticles encapsulated within ...
Lire la suite >Conventional melt infiltration (over calcined SBA-15 silica support) and optimized melt infiltration (over surfactant-containing SBA-15 support) were used for the first time to prepare MnOx nanoparticles encapsulated within the support pores. A comprehensive study on the evolution of textural, structural, and morphological characteristics of the MnOx-silica composites as well as their redox and surface properties is reported herein by varying synthesis parameters, such as manganese loading (5, 10, 20 and 30 Mn wt. %), and post-treatment temperature (300 and 500 °C). The catalytic performances of the materials prepared in this work have been evaluated in the catalytic oxidation of formaldehyde. The results show a high performance of the SBA-15 supported manganese oxide at low- to moderate- temperatures of reaction (Temperature at 50 % of HCHO conversion into CO2 ranging from 110° to 150°C), activity being related to Mn oxidation state (from 2.3 to 4) and MnOx phase location, confined with or without 3D spatial distribution in the support porosity or formed at the external surface of SBA-15. A high stability (60 hours), under dry air and 50% relative humidity air, is reported for MnOx-based nanocatalysts prepared by conventional and optimized melt infiltration procedures.Lire moins >
Lire la suite >Conventional melt infiltration (over calcined SBA-15 silica support) and optimized melt infiltration (over surfactant-containing SBA-15 support) were used for the first time to prepare MnOx nanoparticles encapsulated within the support pores. A comprehensive study on the evolution of textural, structural, and morphological characteristics of the MnOx-silica composites as well as their redox and surface properties is reported herein by varying synthesis parameters, such as manganese loading (5, 10, 20 and 30 Mn wt. %), and post-treatment temperature (300 and 500 °C). The catalytic performances of the materials prepared in this work have been evaluated in the catalytic oxidation of formaldehyde. The results show a high performance of the SBA-15 supported manganese oxide at low- to moderate- temperatures of reaction (Temperature at 50 % of HCHO conversion into CO2 ranging from 110° to 150°C), activity being related to Mn oxidation state (from 2.3 to 4) and MnOx phase location, confined with or without 3D spatial distribution in the support porosity or formed at the external surface of SBA-15. A high stability (60 hours), under dry air and 50% relative humidity air, is reported for MnOx-based nanocatalysts prepared by conventional and optimized melt infiltration procedures.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Collections :
Équipe(s) de recherche :
Matériaux pour la catalyse (MATCAT)
Remédiation et matériaux catalytiques (REMCAT)
Remédiation et matériaux catalytiques (REMCAT)
Date de dépôt :
2022-03-02T07:14:18Z
2023-03-23T07:39:17Z
2023-03-23T09:36:00Z
2023-03-23T07:39:17Z
2023-03-23T09:36:00Z
Fichiers
- ChemCatChem_2020_Rochard_manuscript for Lilloa.pdf
- Version soumise (preprint)
- Accès libre
- Accéder au document
Annexes
- ChemCatChem_2020_Rochard_SI for Lilloa.pdf
- N/A
- Accès libre
- Supplementary Information
- Accéder au document