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Characterisation of nanocrystalline magnesium oxide by X-ray absorption spectroscopy

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<mark>Journal publication date</mark>1/04/2007
<mark>Journal</mark>ChemPhysChem
Issue number6
Volume8
Number of pages8
Pages (from-to)882-889
Publication StatusPublished
<mark>Original language</mark>English

Abstract

27Al 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 ?C confirmed the presence of corundum, as suggested by XRD, and also the presence of nanocrystalline theta-Al2O3. 27Al MAS NMR chemical shifts, quadrupolar coupling constants and asymmetry parameters are reported for the tetrahedral and octahedral aluminium sites within theta-Al2O3.