Nur, Hadi and Guan, Lau Chin and Endud, Salasiah and Hamdan, Halimaton (2004) Quantitative measurement of a mixture of mesophases cubic MCM-48 and hexagonal MCM-41 by 13C CP/MAS NMR. Materials Letters , 58 (12-13). pp. 1971-1974. ISSN 0167-577X
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Official URL: http://dx.doi.org/10.1016/j.matlet.2003.12.012
Abstract
Quantitative measurement of a mixture of cubic MCM-48 and hexagonal MCM-41 mesophases by means of 13C CP/MAS NMR was discussed. The synthesis of pure cubic MCM-48, pure hexagonal MCM-41 and mixed hexagonal-cubic phases were carried out via mixed cationic-neutral templating route. The result show that in a mixture of hexagonal-cubic phase the presence of MCM-48 at a certain level could not be identified by XRD due to the very weak reflections. The result also show that the technique can be applied to a wide range of mesoporous structures.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 13C CP/MAS NMR, characterization methods, MCM-41, MCM-48 |
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Science |
| ID Code: | 7481 |
| Deposited By: | Nur Amal Zakiah Shamsudin |
| Deposited On: | 06 Jan 2009 03:41 |
| Last Modified: | 15 Feb 2017 00:20 |
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