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95Mo NMR Study of Crystallization in Model Nuclear Waste Glasses

Published online by Cambridge University Press:  01 February 2011

Scott Kroeker ,
Ian Farnan ,
Sophie Schuller  and
Thierry Advocat
Scott Kroeker
Affiliation:
scott_kroeker@umanitoba.ca, University of Manitoba, Chemistry, Winnipeg, Canada
Ian Farnan
Affiliation:
ifarnan@esc.cam.ac.uk, University of Cambridge, Earth Sciences, Cambridge, United Kingdom
Sophie Schuller
Affiliation:
sophie.schuller@cea.fr, CEA-Marcoule, DEN/DTCD/SECM/LDMC, Bagnols/Céze, France
Thierry Advocat
Affiliation:
thierry.advocat@cea.fr, CEA-Saclay, DEN/DANS/DPC/SECR, Gif-sur-Yvette, France
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Abstract

95Mo magic-angle spinning nuclear magnetic resonance (MAS NMR) spectroscopy is surprisingly sensitive to the local environment of tetrahedral molybdate species. A series of compounds related to expected crystallization products in nuclear waste glasses are probed to calibrate their spectral characteristics. Glasses formed with fast and slow quenching show a glassy peak corresponding to tetrahedral molybdate species. With slow quenching, a prominent sharp peak is observed, representing crystallinity. In sodium-borosilicate glasses with 2.5 mol% MoO3, the sharp peak corresponds to pure crystalline sodium molybdate. Cesium-sodium and lithium-sodium borosilicate glasses with Mo show crystalline peaks as well, and suggest that NMR may potentially be used to characterize mixed-cation molydates and more complex phase assemblages. While precise quantification of Mo in different phases is likely to be time-consuming, reasonable estimates can be obtained routinely, making 95Mo MAS NMR a useful tool for investigating phase separation and crystallization in model nuclear waste materials.

Keywords

nuclear magnetic resonance (NMR)amorphouswaste management
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1124: Symposium Q – Scientific Basis for Nuclear Waste Management XXXII , 2008 , 1124-Q03-06
Copyright
Copyright © Materials Research Society 2009

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References

REFERENCES

1. Short, R.J., Hand, R.J., Hyatt, N.C., and Möbus, G., J. Nucl. Mater. 340, 179 (2005).Google Scholar
2. Calas, G., Le Grand, M., Galoisy, L., and Ghaleb, D., J. Nucl. Mater. 322, 15 (2003).Google Scholar
3. Magnin, M., Schuller, S., Caurant, D., Majerus, O;, Deligny, D., and Mercier, C., Ceramic Trans., submitted.Google Scholar
4. Barinova, A.V., Rastsvetaeva, R.K., Nekrasov, Y.V., and Pushcharovskii, D.Y., Doklady Chem. 376, 16 (2001).Google Scholar
5. d'Espinose de Lacaillerie, J.-B., Barberon, F., Romanenko, K.V., Lapina, O.B., Le Pollès, L., Gautier, R., and Gan, Z., J. Phys. Chem. B 109, 14033 (2005).Google Scholar
6. Hand, R.J., Short, R.J., Morgan, S., Hyatt, N.C., Möbus, G., and Lee, W.E., Glass Technol. 46, 121 (2005).Google Scholar
7. Santagneli, S.H., de Araujo, C.C., Strojek, W., Eckert, H., Poirier, G., Ribeiro, S.J.L., and Messaddeq, Y., J. Phys. Chem. B 111, 10109 (2007).Google Scholar