Exploring Mass Transfer in Mesoporous Zeolites by NMR Diffusometry

Materials

Dirk Mehlhorn²  Rustem Valiullin²  Jörg Kärger²  Kanghee Cho¹ 

[1] Department of Chemistry and Graduate School of Nanoscience and Technology (WCU), KAIST, Daejeon 305-701, Korea; E-Mail:;Faculty of Physics and Earth Science, University of Leipzig, Linnèstr. 5, Leipzig D-04103, Germany; E-Mails:

关键词: mesoporous zeolites;    diffusion;    surface barriers;    NaCaA;    propane;    NMR;   

DOI  :  10.3390/ma5040699

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.