Journal of Physical Chemistry, Vol.99, No.7, 1837-1839, 1995
Use of C-13 CP NMR-Spectroscopy for the Quantification of Fau/EMT Zeolite Intergrowths Synthesized with 15-Crown-5 and 18-Crown-6 Ethers
The C-13 CP NMR envelope of as-synthesized crown ether containing intergrown faujasite polytype zeolites can be used to determine their FAU and EMT content. The method is calibrated with multiphase Rietveld refinement of X-ray patterns that are not broadened too much compared to those of the phase pure samples.