STUDIES ON ORDERED MESOPOROUS MATERIALS .3. COMPARISON OF MCM-41 TO MESOPOROUS MATERIALS DERIVED FROM KANEMITE

被引：260
作者：
CHEN, CY
XIAO, SQ
DAVIS, ME
机构：
[1] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,NATL CTR ELECTRON MICROSCOPY,BERKELEY,CA 94720
[2] CALTECH,PASADENA,CA 91125
来源：
MICROPOROUS MATERIALS | 1995年 / 4卷 / 01期
关键词：
KANEMITE; MCM-41; MESOPOROUS MATERIALS; SYNTHESIS; CHARACTERIZATION; MECHANISMS;
D O I：
10.1016/0927-6513(94)00077-9
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
MCM41 and mesoporous materials derived from kanemite are synthesized and characterized by X-ray powder diffraction (XRD), N-2 adsorption-desorption, cyclohexane and water physical adsorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetric analyses (TGA), Fourier transform infrared (FTIR) and C-13 and Si-29 magic-angle spinning nuclear magnetic resonance (MAS NMR) spectroscopy. Both preparations yield mesoporous materials with narrow-pore-size distributions and somewhat similar physicochemical properties. However, due to a higher degree of condensation in the silicate walls of the materials derived from kanemite, these samples have higher thermal and hydrothermal stability than MCM-41. Additionally, the mechanisms by which these two types of materials are formed are dramatically different.
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页码：1 / 20
页数：20
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