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.
Savin, S. L. P.
Chadwick, A. V.
Smith, Mark E.

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Publication date

July 2007

DOI

10.1016/j.ssnmr.2007.05.002

Publisher

Elsevier BV

ISSN

0926-2040

Citation count (estimate)

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

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

Abstract

Extracted data

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

Abstract

Extracted data

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