6533b85bfe1ef96bd12bb388

RESEARCH PRODUCT

FTIR Microscopy with Polarized Radiation for the Analysis of Adsorption Processes in Molecular Sieves

D. DemuthD. DemuthFerdi SchüthFerdi SchüthS. Kallus

subject

CrystallographyAdsorptionChemistryMicroscopyMoleculeFourier transform infrared spectroscopyRadiationMolecular sieve

description

FTIR Microscopy with polarized light was used to study the orientation of different molecules in Silicalite I, SAPO-5 and AlPO 4 -5 molecular sieves during the adsorption process and in their equilibrium positions. While the uptake and the equilibrium positions of p-xylene are essentially not influenced by the the framework charge, large differences between AlPO 4 -5 and SAPO-5 are observed with the strongly basic p-nitroaniline molecule.

https://doi.org/10.1016/s0167-2991(08)63661-7