An analytical approach to determine the pore shape and size of MCM-41 materials from X-ray diffraction data

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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 N(2) gas adsorption measurement combined with the Fourier synthesized density map.
Publisher
AMER CHEMICAL SOC
Issue Date
2006-06
Language
English
Article Type
Article
Keywords

MESOPOROUS MATERIALS; WALL STRUCTURE

Citation

JOURNAL OF PHYSICAL CHEMISTRY B, v.110, no.22, pp.10630 - 10635

ISSN
1520-6106
DOI
10.1021/jp0572378
URI
http://hdl.handle.net/10203/10989
Appears in Collection
CH-Journal Papers(저널논문)
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