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 θ-Al2O3. 27Al MAS NMR chemical shifts, quadrupolar coupling constants and asymmetry parameters are reported for the tetrahedral and octahedral aluminium sites within θ-Al2O3. © 2007 Elsevier Inc. All rights reserved.
CITATION STYLE
O’Dell, L. A., Savin, S. L. P., Chadwick, A. V., & Smith, M. E. (2007). A 27Al MAS NMR study of a sol-gel produced alumina: Identification of the NMR parameters of the θ-Al2O3 transition alumina phase. Solid State Nuclear Magnetic Resonance, 31(4), 169–173. https://doi.org/10.1016/j.ssnmr.2007.05.002
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