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Please use this identifier to cite or link to this item: http://hdl.handle.net/10373/838

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Title: XAFS analyses of molten metal fluorides
Authors: Matsuura, Haruaki
Watanabe, Sou
Akatsuka, Hiroshi
Okamoto, Yoshihiro
Adya, Ashok K.
Affiliation: University of Abertay Dundee. School of Contemporary Sciences
Keywords: Molten metal fluoride
Rare earth metal fluoride
Alkaline-earth metal fluoride
Lead fluoride
X-ray absorption fine structure
Pyrochemical treatment
Molten salt reactor
Local structure analysis
Synchrotron radiation
Issue Date: Jan-2009
Publisher: Elsevier
Type: Journal Article
Refereed: peer-reviewed
Rights: This is the author's final version of this article. Published version (c)Elsevier, available from http://dx.doi.org/10.1016/j.jfluchem.2008.07.012
Citation: Matsuura, H., et al. 2009. XAFS analyses of molten metal fluorides. Journal of Fluorine Chemistry. 130(1): pp.53-60. Available from http://dx.doi.org/10.1016/j.jfluchem.2008.07.012
Abstract: X-ray absorption fine structure studies of molten metal fluorides containing the materials related to nuclear engineering are intensively summarized. By using XAFS spectra data of divalent and trivalent cation metal fluorides in molten state which have been collected by authors’ group for a few years, local structure have been extracted and discussed systematically in conjunction with other spectroscopic studies and numerical calculations. In molten divalent fluorides, tetrahedral coordination of fluorides around a cation is predominant. In the case of pure molten trivalent fluorides, structure with more than 6-coordination has been suggested in some cases, but octahedral coordination structure is much stabilized at heavier rare earth metal fluorides. By mixing with alkali metal fluorides, it is a general trend that inter-ionic distances keep constant, but coordination number of fluorides decreases. In experimental chapter, all the details of sample preparation, furnace installation, X-ray optics setups and data analyses procedures are explained. Finally, future expectations of XAFS technique are also suggested.
URI: http://hdl.handle.net/10373/838
ISSN: 0022-1139
Appears in Collections:Science Engineering & Technology Collection

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