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Materials 2012, 5(4), 699-720;

Exploring Mass Transfer in Mesoporous Zeolites by NMR Diffusometry

Faculty of Physics and Earth Science, University of Leipzig, Linnèstr. 5, Leipzig D-04103, Germany
Department of Chemistry and Graduate School of Nanoscience and Technology (WCU), KAIST, Daejeon 305-701, Korea
Authors to whom correspondence should be addressed.
Received: 21 February 2012 / Revised: 2 April 2012 / Accepted: 15 April 2012 / Published: 20 April 2012
(This article belongs to the Special Issue Diffusion in Micropores)
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With the advent of mesoporous zeolites, the exploration of their transport properties has become a task of primary importance for the auspicious application of such materials in separation technology and heterogeneous catalysis. After reviewing the potential of the pulsed field gradient method of NMR (PFG NMR) for this purpose in general, in a case study using a specially prepared mesoporous zeolite NaCaA as a host system and propane as a guest molecule, examples of the attainable information are provided. View Full-Text
Keywords: mesoporous zeolites; diffusion; surface barriers; NaCaA; propane; NMR mesoporous zeolites; diffusion; surface barriers; NaCaA; propane; NMR

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Mehlhorn, D.; Valiullin, R.; Kärger, J.; Cho, K.; Ryoo, R. Exploring Mass Transfer in Mesoporous Zeolites by NMR Diffusometry. Materials 2012, 5, 699-720.

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