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, L. A. and Savin, S. L. P. and Chadwick, A. 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 1527-3326

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Official URL: https://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:

Journal Article

Journal or Publication Title:

Solid State Nuclear Magnetic Resonance

Uncontrolled Keywords:

/dk/atira/pure/subjectarea/asjc/3100/3108

Subjects:

?? AL-27 MAS NMR, THETA-ALUMINA, NMR INTERACTION PARAMETERSPHYSICSINSTRUMENTATIONCHEMISTRY(ALL)NUCLEAR AND HIGH ENERGY PHYSICSRADIATION ??

Departments:

VC's Office

ID Code:

52865

Deposited By:

ep_importer_pure

Deposited On:

29 Feb 2012 11:43

Refereed?:

Yes

Published?:

Published

Last Modified:

19 Sep 2023 00:48

URI:

https://eprints.lancs.ac.uk/id/eprint/52865