Synthesis and gas adsorption properties of mesoporous silica-NH2-MIL-53(Al) core-shell spheres

Sara Sorribas; Beatriz Zornoza; Pablo Serra-Crespo; Jorge Gascon; Freek Kapteijn; Carlos Téllez; Joaquín Coronas

doi:10.1016/j.micromeso.2015.12.004

Synthesis and gas adsorption properties of mesoporous silica-NH₂-MIL-53(Al) core-shell spheres

Sara Sorribas, Beatriz Zornoza, Pablo Serra-Crespo, Jorge Gascon, Freek Kapteijn, Carlos Téllez, Joaquín Coronas^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

Ordered mesoporous silica-NH₂-MIL-53(Al) core-shell spheres of about 4 μm in diameter have been synthesized by seeding the corresponding mesoporous silica spheres (MSSs) with crystals of NH₂-MIL-53(Al) and subsequent secondary crystal growth into a MOF shell. The morphology of the particles was analyzed by SEM, while TGA, EDX and XRD characterizations gave information on the composition and structure of this material and the activation of the MOF. N₂ adsorption analysis revealed that the NH₂-MIL-53(Al) shell controlled the access of guest molecules into the hydrophilic silica mesoporous structure, while the breathing behavior of the microporous NH₂-MIL-53(Al) shell was confirmed by CO₂ adsorption isotherms.

Original language	English (US)
Pages (from-to)	116-121
Number of pages	6
Journal	Microporous and Mesoporous Materials
Volume	225
DOIs	https://doi.org/10.1016/j.micromeso.2015.12.004
State	Published - May 1 2016
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 Elsevier Inc. All rights reserved.

Keywords

Adsorption
Core-shell
Metal-organic framework
NH-MIL-53
Ordered mesoporous silica

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics
Mechanics of Materials

Access to Document

10.1016/j.micromeso.2015.12.004

Cite this

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title = "Synthesis and gas adsorption properties of mesoporous silica-NH2-MIL-53(Al) core-shell spheres",

abstract = "Ordered mesoporous silica-NH2-MIL-53(Al) core-shell spheres of about 4 μm in diameter have been synthesized by seeding the corresponding mesoporous silica spheres (MSSs) with crystals of NH2-MIL-53(Al) and subsequent secondary crystal growth into a MOF shell. The morphology of the particles was analyzed by SEM, while TGA, EDX and XRD characterizations gave information on the composition and structure of this material and the activation of the MOF. N2 adsorption analysis revealed that the NH2-MIL-53(Al) shell controlled the access of guest molecules into the hydrophilic silica mesoporous structure, while the breathing behavior of the microporous NH2-MIL-53(Al) shell was confirmed by CO2 adsorption isotherms.",

keywords = "Adsorption, Core-shell, Metal-organic framework, NH-MIL-53, Ordered mesoporous silica",

author = "Sara Sorribas and Beatriz Zornoza and Pablo Serra-Crespo and Jorge Gascon and Freek Kapteijn and Carlos T{\'e}llez and Joaqu{\'i}n Coronas",

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T1 - Synthesis and gas adsorption properties of mesoporous silica-NH2-MIL-53(Al) core-shell spheres

AU - Sorribas, Sara

AU - Zornoza, Beatriz

AU - Serra-Crespo, Pablo

AU - Gascon, Jorge

AU - Kapteijn, Freek

AU - Téllez, Carlos

AU - Coronas, Joaquín

PY - 2016/5/1

Y1 - 2016/5/1

N2 - Ordered mesoporous silica-NH2-MIL-53(Al) core-shell spheres of about 4 μm in diameter have been synthesized by seeding the corresponding mesoporous silica spheres (MSSs) with crystals of NH2-MIL-53(Al) and subsequent secondary crystal growth into a MOF shell. The morphology of the particles was analyzed by SEM, while TGA, EDX and XRD characterizations gave information on the composition and structure of this material and the activation of the MOF. N2 adsorption analysis revealed that the NH2-MIL-53(Al) shell controlled the access of guest molecules into the hydrophilic silica mesoporous structure, while the breathing behavior of the microporous NH2-MIL-53(Al) shell was confirmed by CO2 adsorption isotherms.

AB - Ordered mesoporous silica-NH2-MIL-53(Al) core-shell spheres of about 4 μm in diameter have been synthesized by seeding the corresponding mesoporous silica spheres (MSSs) with crystals of NH2-MIL-53(Al) and subsequent secondary crystal growth into a MOF shell. The morphology of the particles was analyzed by SEM, while TGA, EDX and XRD characterizations gave information on the composition and structure of this material and the activation of the MOF. N2 adsorption analysis revealed that the NH2-MIL-53(Al) shell controlled the access of guest molecules into the hydrophilic silica mesoporous structure, while the breathing behavior of the microporous NH2-MIL-53(Al) shell was confirmed by CO2 adsorption isotherms.

KW - Adsorption

KW - Core-shell

KW - Metal-organic framework

KW - NH-MIL-53

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