Short communication on further elucidating the structure of amorphous U2O7 by extended X-ray absorption spectroscopy and DFT simulations
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
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Yn: Journal of Nuclear Materials, Cyfrol 542, 152476, 15.12.2020.
Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
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T1 - Short communication on further elucidating the structure of amorphous U2O7 by extended X-ray absorption spectroscopy and DFT simulations
AU - Thompson, Nathan
AU - Middleburgh, Simon
AU - Evitts, Lee
AU - Gilbert, Matthew
AU - Sennett, Martin
AU - Hyatt, Neil
PY - 2020/12/15
Y1 - 2020/12/15
N2 - The structure of amorphous U2O7 has been examined by extended x-ray absorption near edge spectroscopy (EXAFS) and modelled using density functional theory (DFT) simulations. A hybridised metastudtite-UO3 structure is proposed, consisting of peroxide bonds (O-Operoxo), uranyl units (U=Oyl) and U-O bonding. Experimental and simulated X-ray diffraction (XRD) is used to confirm the proposed structure.
AB - The structure of amorphous U2O7 has been examined by extended x-ray absorption near edge spectroscopy (EXAFS) and modelled using density functional theory (DFT) simulations. A hybridised metastudtite-UO3 structure is proposed, consisting of peroxide bonds (O-Operoxo), uranyl units (U=Oyl) and U-O bonding. Experimental and simulated X-ray diffraction (XRD) is used to confirm the proposed structure.
U2 - 10.1016/j.jnucmat.2020.152476
DO - 10.1016/j.jnucmat.2020.152476
M3 - Article
VL - 542
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
SN - 0022-3115
M1 - 152476
ER -