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  • Title: An analytical approach to determine the pore shape and size of MCM-41 materials from X-ray diffraction data.
    Author: Muroyama N, Ohsuna T, Ryoo R, Kubota Y, Terasaki O.
    Journal: J Phys Chem B; 2006 Jun 08; 110(22):10630-5. PubMed ID: 16771308.
    Abstract:
    The pore shape and size of MCM-41 were studied analytically by comparing the observed powder X-ray diffraction intensities with that derived from the MCM-41 crystal structure models, with two different pore shapes, a hexagon and a circle. The powder diffraction patterns from the as-synthesized and the calcined MCM-41 were measured by a synchrotron radiation at SPring-8, Japan. The MCM-41 structure with circular and hexagonal pore shapes explains well for the as-synthesized and the calcined MCM-41 crystals, respectively. The pore size and boundary obtained by this approach agree with those obtained from an N2 gas adsorption measurement combined with the Fourier synthesized density map.
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