High-energy EXAFS study of molten GdCl systems

Okamoto, Yoshihiro ; Shiwaku, Hideaki ; Yaita, Tsuyoshi; Suzuki, Shinichi; Gaune-Escard, M.*

The local structure of molten GdCl and its mixture in LiCl-KCl eutectic was investigated by Gd K-edge extended X-ray absorption fine structure (EXAFS) technique. As the result of curve fitting analysis, the nearest Gd $^{3+}$ -Cl distance was 2.740.02 with coordination number 6.50.3 in the pure melt. On the other hand, those in the 10%GdCl $_{3}$ mixture melt decreased to 2.700.01 and 6.10.3, respectively. These results suggest that octahedral coordination (GdCl) $^{3-}$ structure is formed and stabilized by mixing with the alkali chlorides. The result was compared with that of YCl and LaCl in LiCl-KCl eutectic melt.

Language	:	English
Journal	:	Journal of Molecular Liquids
Volume	:	187
Number	:
Pages	:	p.94 - 98
Publication Year/Month	:	2013/11
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Paper URL	:	https://doi.org/10.1016/j.molliq.2013.05.018
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Keywords	:	no keyword
Research Facility	:	SPring-8(大型放射光施設)
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Registration No. : AA20130163
JAEA Abstracts No. : 41001257
Paper Submission No. : 13244

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