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 journalArticlepeer-review

11 Scopus citations


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 languageEnglish (US)
Article number164704
Issue number16
StatePublished - Oct 28 2012
Externally publishedYes

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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