Assembly of SBA-15 into hierarchical porous monoliths replicating polymeric scaffolds

Yildiz, Ridvan; Lorgouilloux, Yannick; Dhainaut, Jérémy; Ciotonea, Carmen; Dacquin, Jean-Philippe; royer, sebastien; Courtois, Christian

Document type :

Article dans une revue scientifique: Article original

DOI :

10.1016/j.micromeso.2022.111908

Permalink :

http://hdl.handle.net/20.500.12210/73577

Title :

Assembly of SBA-15 into hierarchical porous monoliths replicating polymeric scaffolds

Author(s) :

Yildiz, Ridvan [Auteur]
Lorgouilloux, Yannick [Auteur]
Dhainaut, Jérémy [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Ciotonea, Carmen [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Dacquin, Jean-Philippe [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
royer, sebastien [Auteur]

Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Courtois, Christian [Auteur]

Journal title :

Microporous and Mesoporous Materials

Abbreviated title :

Microporous and Mesoporous Materials

Volume number :

337

Pages :

111908

Publisher :

Elsevier BV

Publication date :

2022-04-12

ISSN :

1387-1811

English keyword(s) :

SBA-15
Hierarchical porous materials
Monoliths
Shaping technique
Slurry infiltration

HAL domain(s) :

Chimie/Catalyse

English abstract : [en]

This study reports the preparation of highly porous, SBA-15-based monolithic materials with pore sizes spanning over four scales (micro-/meso-/small macro-/large macro-pores). Two approaches were explored. The first one ...
Show more >This study reports the preparation of highly porous, SBA-15-based monolithic materials with pore sizes spanning over four scales (micro-/meso-/small macro-/large macro-pores). Two approaches were explored. The first one involves the preparation of PMMA scaffolds obtained from chemically-bonded beads and their further infiltration using SBA-15 slurries with suitable viscosity; while the second one directly uses the same amount of PMMA beads dispersed within the slurries. Emphasis was given to the comparison of the textural, structural, and mechanical properties obtained following each approach. Then, application of a thermal consolidation step and its influence over the monoliths properties was investigated, with an optimum observed at 950 °C. The second method systematically allowed reaching higher mechanical resistances (86 vs 32 kPa at 950 °C) for comparable specific surface areas (274 vs 290 m²/g at 950 °C), however at the expense of smaller macropores and lower ordering in the monoliths.Show less >

Language :

Anglais

Peer reviewed article :

Oui

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) :

Matériaux pour la catalyse (MATCAT)

Submission date :

2022-04-12T08:56:22Z
2022-04-19T12:52:45Z

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Version	Link	Modification date
2	20.500.12210/73577*	2022-04-19T12:46:23Z
1	20.500.12210/73577.1	2022-04-12T08:56:22Z

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