Monitoring molecular mass transfer in cation-free nanoporous host crystals of type AlPO-LTA

Florian Hibbe; Jürgen Caro; Christian Chmelik; Aisheng Huang; Tom Kirchner; Douglas Ruthven; Rustem Valiullin; Jörg Kärger

doi:10.1021/ja211492b

Monitoring molecular mass transfer in cation-free nanoporous host crystals of type AlPO-LTA

Florian Hibbe
, Jürgen Caro
, Christian Chmelik
, Aisheng Huang
, Tom Kirchner
, Douglas Ruthven
, Rustem Valiullin
, Jörg Kärger^*

^*Corresponding author for this work

Leipzig University
Leibniz University Hannover
University of Maine

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

50 Scopus citations

Abstract

Micro-imaging is employed to monitor the evolution of intra-crystalline guest profiles during molecular adsorption and desorption in cation-free zeolites AlPO-LTA. The measurements are shown to provide direct evidence on the rate of intra-crystalline diffusion and surface permeation and their inter-relation. Complemented by PFG NMR and integral IR measurements, a comprehensive overview of the diffusivities of light hydrocarbons in this important type of host materials is provided.

Original language	English
Pages (from-to)	7725-7732
Number of pages	8
Journal	Journal of the American Chemical Society
Volume	134
Issue number	18
DOIs	https://doi.org/10.1021/ja211492b
State	Published - 9 May 2012
Externally published	Yes

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10.1021/ja211492b

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abstract = "Micro-imaging is employed to monitor the evolution of intra-crystalline guest profiles during molecular adsorption and desorption in cation-free zeolites AlPO-LTA. The measurements are shown to provide direct evidence on the rate of intra-crystalline diffusion and surface permeation and their inter-relation. Complemented by PFG NMR and integral IR measurements, a comprehensive overview of the diffusivities of light hydrocarbons in this important type of host materials is provided.",

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AU - Hibbe, Florian

AU - Caro, Jürgen

AU - Chmelik, Christian

AU - Huang, Aisheng

AU - Kirchner, Tom

AU - Ruthven, Douglas

AU - Valiullin, Rustem

AU - Kärger, Jörg

PY - 2012/5/9

Y1 - 2012/5/9

N2 - Micro-imaging is employed to monitor the evolution of intra-crystalline guest profiles during molecular adsorption and desorption in cation-free zeolites AlPO-LTA. The measurements are shown to provide direct evidence on the rate of intra-crystalline diffusion and surface permeation and their inter-relation. Complemented by PFG NMR and integral IR measurements, a comprehensive overview of the diffusivities of light hydrocarbons in this important type of host materials is provided.

AB - Micro-imaging is employed to monitor the evolution of intra-crystalline guest profiles during molecular adsorption and desorption in cation-free zeolites AlPO-LTA. The measurements are shown to provide direct evidence on the rate of intra-crystalline diffusion and surface permeation and their inter-relation. Complemented by PFG NMR and integral IR measurements, a comprehensive overview of the diffusivities of light hydrocarbons in this important type of host materials is provided.

UR - https://www.scopus.com/pages/publications/84860877686

U2 - 10.1021/ja211492b

DO - 10.1021/ja211492b

M3 - 文章

AN - SCOPUS:84860877686

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JF - Journal of the American Chemical Society

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ER -

Monitoring molecular mass transfer in cation-free nanoporous host crystals of type AlPO-LTA

Abstract

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