Uranium oligomerization in chloride-based high temperature melts: in situ XAS studies.
In situ EXAFS spectroscopic studies of uranium compounds in high temperature alkali chloride melts indicate the presence of oligomeric species. An investigation into UCl(3) and UCl(4) dissolved in LiCl reveals long range ordering of uranium atoms in the molten state which is not maintained on quenching. Studies of uranium dioxide dissolved in LiCl-KCl eutectic with HCl exhibit long range ordering in both molten and quenched states, and the EXAFS data can be modeled using multiple coordination shells.
Bhatt
Anand I
AI
Centre for Radiochemistry Research, Department of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, UK.
du Fou de Kerdaniel
Erwan
E
Kinoshita
Hajime
H
Livens
Francis R
FR
May
Iain
I
Polovov
Ilya B
IB
Sharrad
Clint A
CA
Volkovich
Vladimir A
VA
Charnock
John M
JM
Lewin
Robert G
RG