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An efficient tailoring of the pore-opening size from mesoporous MCM-48 (27.7 Å) to microporous solid (6–8 Å) has been conducted through the post-synthesis modification of mesoporous MCM-48. The tailored solid material is totally different from the parent MCM-48 in the nitrogen adsorption behavior, but still possesses the X-ray diffraction characteristics of MCM-48 framework. Thermal analyses suggest...
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