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29Si and 27Al MAS NMR spectra of mullites from different kaolinites

He, Hongping, Guo, Jiugao, Zhu, Jianxi, Yuan, Peng, & Hu, Cheng (2004) 29Si and 27Al MAS NMR spectra of mullites from different kaolinites. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 60(5), pp. 1061-1064.

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Abstract

Mullites synthesized from four kaolinites with different random defect densities have been studied by 27Al and 29Si magic angle spinning nuclear magnetic resonance spectroscopy (MAS NMR) and X-ray diffraction (XRD). All these mullites showthe same XRD pattern. However, 29Si and 27Al MAS NMR spectra reveal that the mullites derived from kaolinites with high defect densities, have a sillimanite-type Al/Si ordering scheme and are low in silica, whereas those mullites derived from kaolinites with low defect densities, consist of both sillimaniteand mullite-type Al/Si ordering schemes and are rich in silica.

Impact and interest:

18 citations in Scopus
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13 citations in Web of Science®

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ID Code: 1516
Item Type: Journal Article
Keywords: MAS NMR spectrum, Mullite, Kaolinite, Defect density
DOI: 10.1016/S1386-1425(03)00337-8
ISSN: 1386-1425
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > INORGANIC CHEMISTRY (030200)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2004 Elsevier
Copyright Statement: Reproduced in accordance with the copyright policy of the publisher.
Deposited On: 11 Jul 2006
Last Modified: 11 Aug 2011 04:39

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