Uranium oligomerization in chloride-based high temperature melts: In situ XAS studies

Anand I. Bhatt; Erwan Du Fou De Kerdaniel; Hajime Kinoshita; Francis R. Livens; Iain May; Ilya B. Polovov; Clint A. Sharrad; Vladimir A. Volkovich; John M. Charnock; Robert G. Lewin

doi:10.1021/ic048617v

Uranium oligomerization in chloride-based high temperature melts: In situ XAS studies

Anand I. Bhatt, Erwan Du Fou De Kerdaniel, Hajime Kinoshita, Francis R. Livens, Iain May, Ilya B. Polovov, Clint A. Sharrad, Vladimir A. Volkovich, John M. Charnock, Robert G. Lewin

Research output: Contribution to journal › Article › peer-review

Abstract

In situ EXAFS spectroscopic studies of uranium compounds in high temperature alkali chloride melts indicate the presence of oligomeric species. An investigation into UCl3 and UCl4 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.

Original language	English
Pages (from-to)	2-4
Number of pages	2
Journal	Inorganic Chemistry: including bioinorganic chemistry
Volume	44
Issue number	1
DOIs	https://doi.org/10.1021/ic048617v
Publication status	Published - 10 Jan 2005

Keywords

Complexation; EXAFS spectra; Molecular association; Order; UV and visible spectra (uranium oligomerization in chloride-based high temp. melts: in situ XAS studies)

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10.1021/ic048617v

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title = "Uranium oligomerization in chloride-based high temperature melts: In situ XAS studies",

abstract = "In situ EXAFS spectroscopic studies of uranium compounds in high temperature alkali chloride melts indicate the presence of oligomeric species. An investigation into UCl3 and UCl4 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.",

keywords = "Complexation; EXAFS spectra; Molecular association; Order; UV and visible spectra (uranium oligomerization in chloride-based high temp. melts: in situ XAS studies)",

author = "Bhatt, {Anand I.} and {Du Fou De Kerdaniel}, Erwan and Hajime Kinoshita and Livens, {Francis R.} and Iain May and Polovov, {Ilya B.} and Sharrad, {Clint A.} and Volkovich, {Vladimir A.} and Charnock, {John M.} and Lewin, {Robert G.}",

year = "2005",

month = jan,

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doi = "10.1021/ic048617v",

language = "English",

volume = "44",

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journal = "Inorganic Chemistry: including bioinorganic chemistry ",

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T1 - Uranium oligomerization in chloride-based high temperature melts: In situ XAS studies

AU - Bhatt, Anand I.

AU - Du Fou De Kerdaniel, Erwan

AU - Kinoshita, Hajime

AU - Livens, Francis R.

AU - May, Iain

AU - Polovov, Ilya B.

AU - Sharrad, Clint A.

AU - Volkovich, Vladimir A.

AU - Charnock, John M.

AU - Lewin, Robert G.

PY - 2005/1/10

Y1 - 2005/1/10

N2 - In situ EXAFS spectroscopic studies of uranium compounds in high temperature alkali chloride melts indicate the presence of oligomeric species. An investigation into UCl3 and UCl4 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.

AB - In situ EXAFS spectroscopic studies of uranium compounds in high temperature alkali chloride melts indicate the presence of oligomeric species. An investigation into UCl3 and UCl4 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.

KW - Complexation; EXAFS spectra; Molecular association; Order; UV and visible spectra (uranium oligomerization in chloride-based high temp. melts: in situ XAS studies)

U2 - 10.1021/ic048617v

DO - 10.1021/ic048617v

M3 - Article

SN - 0020-1669

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SP - 2

EP - 4

JO - Inorganic Chemistry: including bioinorganic chemistry

JF - Inorganic Chemistry: including bioinorganic chemistry

IS - 1

ER -

Uranium oligomerization in chloride-based high temperature melts: In situ XAS studies

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Keywords

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