A Al-27 MAS NMR study of a sol-gel produced alumina: Identification of the NMR parameters of the theta-Al2O3 transition alumina phase

O'Dell, Luke A. and Savin, Shelly L. P. and Chadwick, Alan V. and Smith, Mark E. (2007) A Al-27 MAS NMR study of a sol-gel produced alumina: Identification of the NMR parameters of the theta-Al2O3 transition alumina phase. Solid State Nuclear Magnetic Resonance, 31 (4). pp. 169-173. ISSN 0926-2040. (Access to this publication is restricted)

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http://dx.doi.org/10.1016/j.ssnmr.2007.05.002

Abstract

Al-27 MAS NMR has been used to study a sol-gel prepared alumina annealed at various temperatures. Two-field simulation of the sample heated to 1200 degrees C confirmed the presence of corundum, as suggested by XRD, and also the presence of nanocrystalline theta-Al2O3. Al-27 MAS NMR chemical shifts, quadrupolar coupling constants and asymmetry parameters are reported for the tetrahedral and octahedral aluminium sites within theta-Al2O3.

Item Type: Article
Uncontrolled keywords: Al-27 MAS NMR; theta-alumina; NMR interaction parameters
Subjects: Q Science > QC Physics
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Functional Materials Group
Depositing User: Stephen Holland
Date Deposited: 19 Dec 2007 19:25
Last Modified: 14 May 2014 11:05
Resource URI: http://kar.kent.ac.uk/id/eprint/2039 (The current URI for this page, for reference purposes)
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