Title: Synthesis of mesoporous molecular sieve MCM-48、X-ray diffraction and~(129)Xe NMR
Abstract: A cubic member of mesoporous molecular sieve M41S family with a three dimension structure was denoted as MCM-48. A cubic symmetry with an Ia3dspace group was determined by X-ray powder diffraction(XRD)for the as -synthesized and calcined MCM-48 material. The pore structure was unaffected by the local change of structure .The chemical shift in 129 Xe NMR Spectroscopy of adsorbed Xenon indicates that the MCM-48 is a cubic symmetry compared with MCM-41, one-dimensional pore channels. The pore of MCM-48 is bigger than that of MCM-41.
Publication Year: 2002
Publication Date: 2002-01-01
Language: en
Type: article
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