Micro-imaging of transient guest profiles in nanoporous host systems of cylindrical symmetry

Tomas Binder; Florian Hibbe; Christian Chmelik; Jörg Kärger; Alberto Martinez-Joaristi; Jorge Gascon; Freek Kapteijn; Douglas Ruthven

doi:10.1063/1.4762849

Micro-imaging of transient guest profiles in nanoporous host systems of cylindrical symmetry

Tomas Binder, Florian Hibbe, Christian Chmelik, Jörg Kärger^*, Alberto Martinez-Joaristi, Jorge Gascon, Freek Kapteijn, Douglas Ruthven

^*Corresponding author for this work

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

11 Scopus citations

Abstract

Nanoporous host materials giving rise to transient guest profiles of cylindrical symmetry during molecular uptake and release are shown to provide particularly advantageous conditions for the study of guest diffusion by micro-imaging. Considering zeolites of structure type DDR (Deca-dodecasil 3R) as a host system and short-chain length hydrocarbons as guest molecules, the benefits thus attainable in micro-imaging studies using interference microscopy are shown to include the determination of transient concentration profiles with improved accuracy, the option to overcome the disturbing impact of surface imperfections, and easy access to concentration-dependent diffusivities.

Original language	English (US)
Article number	164704
Journal	JOURNAL OF CHEMICAL PHYSICS
Volume	137
Issue number	16
DOIs	https://doi.org/10.1063/1.4762849
State	Published - Oct 28 2012
Externally published	Yes

Bibliographical note

Funding Information:
The research presented in this study has been funded by the Deutsche Forschungsgemeinschaft (via the International Research Training Group “Diffusion in Porous Materials”) and the DECHEMA (via Max-Buchner-Forschungsstiftung). Furthermore, the authors express their gratitude for the continuous support by the Alexander von Humboldt Foundation, especially for the two-month visit of the Humboldt fellow D.R. to Leipzig.

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1063/1.4762849

Cite this

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abstract = "Nanoporous host materials giving rise to transient guest profiles of cylindrical symmetry during molecular uptake and release are shown to provide particularly advantageous conditions for the study of guest diffusion by micro-imaging. Considering zeolites of structure type DDR (Deca-dodecasil 3R) as a host system and short-chain length hydrocarbons as guest molecules, the benefits thus attainable in micro-imaging studies using interference microscopy are shown to include the determination of transient concentration profiles with improved accuracy, the option to overcome the disturbing impact of surface imperfections, and easy access to concentration-dependent diffusivities.",

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AU - Hibbe, Florian

AU - Chmelik, Christian

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AU - Martinez-Joaristi, Alberto

AU - Gascon, Jorge

AU - Kapteijn, Freek

AU - Ruthven, Douglas

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Micro-imaging of transient guest profiles in nanoporous host systems of cylindrical symmetry

Abstract

Bibliographical note

ASJC Scopus subject areas

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