M41S is the designation of a new type of mesoporous structures. The charact
eristics of these materials are large surface areas and very narrow pore si
ze distributions, with pore diameters tunable from 15 to 100 Angstrom. The
M41S family consists of MCM-48, which has a cubic ordered pore structure, M
CM-41, which has a hexagonally ordered pore structure and MCM-50, which has
an unstable lamellar structure. In this review we cover the synthesis, mod
ification, characterization and potential, applications of these materials.
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