Abstract
Powder samples of NaLSX faujasite (Si/Al =1) in dehydrated state and with adsorbed methyl iodide were investigated by neutron diffraction and 13C MAS NMR. The distribution of Na + cations and chemisorbed methylium ions in the frame of NaLSX was estimated by Rietveld refinement. Surface methoxy group were located mostly at O 1 and O 4 lattice oxygen. The changes in populations of cationic sites after chemisorption were detected.
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