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Disintegration of Mesoporous Structures of MCM-41 and MCM-48 in Water
김지만,류룡,Kim, Ji Man,Ryu, Ryong Korean Chemical Society 1996 Bulletin of the Korean Chemical Society Vol.17 No.1
It has been found that mesoporous structures of MCM-41 and MCM-48 disintegrate readily in distilled water around 370 K, while the structures can be stable in 100%-steam of 1 atmospheric pressure at much higher temperatures around 820 K. Thus, the structure disintegration is thermodynamically more favorable in water than under the steaming condition. X-ray powder diffraction and magic angle spinning 29Si NMR spectroscopy indicate that the disintegration of the mesoporous structures in water occurs due to silicate hydrolysis.