Citation:
Song Chun-Min, Yan Zi-Feng, Max Lu. Synthesis and Characterization of Supersurface MCM-41 Zeolites[J]. Acta Physico-Chimica Sinica,
;2002, 18(03): 279-283.
doi:
10.3866/PKU.WHXB20020319
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The mesoporous MCM41 molecular sieves with superhigh surface areas were hydrothermally synthesized by means of a novel surfactant. XRD, nitrogen adsorption,SEM and pyridine TGDTA were used to characterize the crystallinity,surface area and mesoporosity and acidity of the synthesized samples. The XRD results showed that MCM41 with high crystallinity. N2 adsorption indicated that BET surface area is 1300 m2•g-1. Pyridine TPD spectra of the samples showed that the acidity of MCM41 is a weak acid. The samples have high thermal stability. The optimum crystallization time is 50~100 h.
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