Disintegration of Mesoporous Structures of MCM-41 and MCM-48 in Water
作者： Ryong Ryoo , Ji Man Kim
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摘要: It has been found that mesoporous structures of MCM-41 and MCM-48 disintegrate readily in distilled water around 370 K, while the can be stable 100%-steam 1 atmospheric pressure at much higher temperatures 820 K. Thus, structure disintegration is thermodynamically more favorable than under steaming condition. X-ray powder diffraction magic angle spinning 29Si NMR spectroscopy indicate occurs due to silicate hydrolysis.
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