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The unique structure of MCM-41 silicates (shown in the picture) has provided for extremely attractive properties - uniform pore sizes greater than 20 Å, surface areas exceeding 1000 m2 g-1, and long-range ordering of the pores. Recent research in supramolecular-templated mesoporous materials has led to a wide range of compositions, to uses in a variety of catalytic reactions, and to a better control of bulk morphologies.