Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) Tracing pore-space heterogeneities in X-type zeolites by diffusion studies
Autor Adem, Z.; Caro, J.; Furtado, F.; Galvosas, P.; Krause, C.B.; Kärger, J.
Journal / Serie Langmuir
Erscheinungsjahr 2011
Department TUCHEM
Band/Volume 27
Heft 1
Seite von 416
Seite bis 419
Sprache englisch
Abstract Pore-space homogeneity of zeolite NaX was probed by pulsed field gradient (PFG) NMR diffusion studies with n-butane as a guest molecule. At a loading of 0.75 molecules per supercage, a wide spectrum of diffusivities was observed. Guest molecules in the (well-shaped) zeolite crystallites were thus found to experience pore spaces of quite different properties. After loading enhancement to 3 molecules per supercage, however, molecular propagation ideally followed the laws of normal diffusion in homogeneous media. At sufficiently high guest concentrations, sample heterogeneity was thus found to be of no perceptible influence on the guest mobilities anymore.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=10703
Adem, Z., Caro, J., Furtado, F., Galvosas, P., Krause, C.B., Kärger, J. (2011):
Tracing pore-space heterogeneities in X-type zeolites by diffusion studies
Langmuir 27 (1), 416 - 419