Hanna, J.V., Smith, Mark E., Whitfield, Harold J. (1996) Multiple quantum magic angle spinning NMR detection of impurity phases in Na2HfO3. Journal of the American Chemical Society, 118 (24). pp. 5772-5777. ISSN 0002-7863. (doi:10.1021/ja960016i) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:19232)
The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. | |
Official URL: http://dx.doi.org/10.1021/ja960016i |
Abstract
One-dimensional Na-23 magic angle spinning (1D-MAS) NMR spectra obtained at 9.4 and 14.1 T from Na2HfO3 reveal three distinct sodium sites with widely differing NMR interaction parameters which can be accurately and unambiguously extracted. On exposure to atmospheric H2O and CO2 minor (similar to 5%) impurities can be detected by 1D-MAS. Complete resolution of the different sites is possible by use of the recently introduced two-dimensional multiple quantum technique which is used for the first time here to detect minority phases. The reaction mechanism is further elucidated by obtaining an alternative perspective from O-17 MAS Nh IR which reveals an amorphous HfO2-related phase is also formed during the decomposition process.
Item Type: | Article |
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DOI/Identification number: | 10.1021/ja960016i |
Subjects: | Q Science > QD Chemistry |
Divisions: | Divisions > Division of Natural Sciences > Physics and Astronomy |
Depositing User: | R.F. Xu |
Date Deposited: | 02 Jun 2009 11:24 UTC |
Last Modified: | 16 Nov 2021 09:57 UTC |
Resource URI: | https://kar.kent.ac.uk/id/eprint/19232 (The current URI for this page, for reference purposes) |
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