Assessing Surface Permeabilities from Transient Guest Profiles in Nanoporous Host Materials

Authors


  • We thank German Research Foundation (DFG), INDENS Marie Curie Program, Studienstiftung des deutschen Volkes, Department of Energy (DOE) (Grant No. DE-FG02-08ER46491) for the financial support. Dr. J. M. van Baten is acknowledged for providing the snapshots of the channels.

Abstract

Easy come, easy go? Transport resistances on particle surfaces are important for mass transfer in nanoporous materials and bulk diffusion in crystals. Interference microscopy and IR micro-imaging are shown to be excellent tools for determining such transport resistances. By studying short-chain-length alkane guest molecules in crystals of the metal–organic framework compound Zn(tbip) a data collection of surface permeabilities is established.

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