Ensemble measurement of diffusion: Novel beauty and evidence

Christian Chmelik; Lars Heinke; Pavel Kortunov; Jing Li; David Olson; Despina Tzoulaki; Jens Weitkamp; Jörg Kärger

doi:10.1002/cphc.200900489

Ensemble measurement of diffusion: Novel beauty and evidence

Christian Chmelik, Lars Heinke, Pavel Kortunov, Jing Li, David Olson, Despina Tzoulaki, Jens Weitkamp, Jörg Kärger

Rutgers University

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

37 Citations (Scopus)

Abstract

Recording the evolution of concentration profiles in nanoporous materials opens a new field of diffusion research with particle ensembles. The technique is based on the complementary application of interference microscopy and IR micro-imaging. Combining the virtues of diffusion measurements with solids and fluids, it provides information of unprecedented wealth and visual power on transport phenomena in molecular ensembles. These phenomena include the diverging uptake and release patterns for concentration-dependent diffusivities, the mechanisms of mass transfer at the fluid-solid interface and opposing tendencies in local and global concentration evolution

Original language	English
Pages (from-to)	2623-2627
Number of pages	5
Journal	ChemPhysChem
Volume	10
Issue number	15
DOIs	https://doi.org/10.1002/cphc.200900489
Publication status	Published - Oct 19 2009

Keywords

Diffusion
Metal-organic frameworks
Nanoporous materials
Surface permeation
Zeolites

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry

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AU - Kärger, Jörg

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