HIGH-RESOLUTION ELECTRON-MICROSCOPY AND X-RAY-DIFFRACTION STUDIES OF MCM-48

被引：123
|
作者：
SCHMIDT, R [1 ]
STOCKER, M [1 ]
AKPORIAYE, D [1 ]
TORSTAD, EH [1 ]
OLSEN, A [1 ]
机构：
[1] UNIV OSLO,CTR MAT RES,DEPT PHYS,N-0371 OSLO,NORWAY
来源：
MICROPOROUS MATERIALS | 1995年 / 5卷 / 1-2期
关键词：
M41S; MCM-48; HIGH-RESOLUTION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; PORE ARCHITECTURE;
D O I：
10.1016/0927-6513(95)00030-D
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A cubic member of the M41S family with a three-dimensional pore system, denoted as MCM-48, was synthesised. By combining X-ray powder diffraction (XRD) with high-resolution electron microscopy (HREM), a cubic symmetry with an Ia(3) over bar d space group was determined for the as-synthesised and the calcined MCM-48 material. Upon calcination the unit cell decreased from around 10.09 nm to about 8.1 nm. The overall pore structure was found to be quite unaffected by local variations in the structure and the decrease in the unit cell size upon calcination.
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页码：1 / 7
页数：7
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