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

Authors
SCHMIDT R STOCKER M AKPORIAYE D TORSTAD EH OLSEN A
Citation
R. Schmidt et al., HIGH-RESOLUTION ELECTRON-MICROSCOPY AND X-RAY-DIFFRACTION STUDIES OF MCM-48, Microporous materials, 5(1-2), 1995, pp. 1-7
Citations number
22
Categorie Soggetti
Chemistry Physical","Material Science","Chemistry Applied
Journal title
Microporous materials → ACNP
ISSN journal
09276513
Volume
5
Issue
1-2
Year of publication
1995
Pages
1 - 7
Database
ISI
SICI code
0927-6513(1995)5:1-2<1:HEAXSO>2.0.ZU;2-T
Abstract
A cubic member of the M41S family with a three-dimensional pore system , denoted as MCM-48, was synthesised. By combining X-ray powder diffra ction (XRD) with high-resolution electron microscopy (HREM), a cubic s ymmetry with an Ia(3) over bar d space group was determined for the as -synthesised and the calcined MCM-48 material. Upon calcination the un it cell decreased from around 10.09 nm to about 8.1 nm. The overall po re structure was found to be quite unaffected by local variations in t he structure and the decrease in the unit cell size upon calcination.