Synchrotron radiation techniques and their application to actinide materials

R Caciuffo, GH Lander, G van der Laan - Reviews of Modern Physics, 2023 - APS
Research on actinide materials, both basic and applied, has been greatly advanced by the
general techniques available from high-intensity photon beams from x-ray synchrotron …

X-ray absorption spectra of f-element complexes: insight from relativistic multiconfigurational wavefunction theory

DC Sergentu, J Autschbach - Dalton Transactions, 2022 - pubs.rsc.org
X-ray absorption near edge structure (XANES) spectroscopy, coupled with ab initio
calculations, has emerged as the state-of-the-art tool for elucidating the metal-ligand …

A multimodal X-ray spectroscopy investigation of uranium speciation in ThTi2O6 compounds with the brannerite structure

MC Dixon Wilkins, LT Townsend, MC Stennett… - Scientific Reports, 2023 - nature.com
ThTi2O6 derived compounds with the brannerite structure were designed, synthesised, and
characterised with the aim of stabilising incorporation of U5+ or U6+, at dilute concentration …

U 2 N@ I h (7)-C 80: fullerene cage encapsulating an unsymmetrical U (iv)[double bond, length as m-dash] N [double bond, length as m-dash] U (v) cluster

X Li, Y Roselló, YR Yao, J Zhuang, X Zhang… - Chemical …, 2021 - pubs.rsc.org
For the first time, an actinide nitride clusterfullerene, U2N@ Ih (7)-C80, is synthesized and
fully characterized by X-ray single crystallography and multiple spectroscopic methods …

Sulfidation and Reoxidation of U (VI)-Incorporated Goethite: Implications for U Retention during Sub-Surface Redox Cycling

O Stagg, K Morris, LT Townsend… - Environmental …, 2022 - ACS Publications
Over 60 years of nuclear activity have resulted in a global legacy of contaminated land and
radioactive waste. Uranium (U) is a significant component of this legacy and is present in …

Exploring the impact of temperature and oxygen partial pressure on the spent nuclear fuel oxidation during its dry management

A Milena-Perez, LJ Bonales, N Rodríguez-Villagra… - Scientific Reports, 2023 - nature.com
Abstract The management of Spent Nuclear Fuel (SNF) comprises different stages in which
security is demonstrated. Nevertheless, fundamental research can lead to other design …

New insights into the structural transition from UO 2+ x to U 3 O 7 by quantitative Raman spectroscopy

JM Elorrieta, A Milena-Pérez, JF Vigier… - Physical Chemistry …, 2022 - pubs.rsc.org
The study of uranium oxides at different conditions is of paramount importance in the nuclear
field, especially regarding characterization of the spent nuclear fuel behavior in dry storage …

Insight into the structure–property relationship of UO 2 nanoparticles

E Gerber, AY Romanchuk, S Weiss… - Inorganic Chemistry …, 2021 - pubs.rsc.org
Highly crystalline UO2 nanoparticles (NPs) with sizes of 2–3 nm were produced by fast
chemical deposition of uranium (IV) under reducing conditions at pH 8–11. The particles …

Tilting and distortion in rutile-related mixed metal ternary uranium oxides: a structural, spectroscopic, and theoretical investigation

GL Murphy, Z Zhang, R Tesch, PM Kowalski… - Inorganic …, 2021 - ACS Publications
A systematic investigation examining the origins of structural distortions in rutile-related
ternary uranium A UO4 oxides using a combination of high-resolution structural and …

Application of High-Energy-Resolution X-ray Absorption Spectroscopy at the UL3-Edge to Assess the U(V) Electronic Structure in FeUO4

T Yomogida, D Akiyama, K Ouchi, Y Kumagai… - Inorganic …, 2022 - ACS Publications
FeUO4 was studied to clarify the electronic structure of U (V) in a metal monouranate
compound. We obtained the peak splitting of spectra utilizing high-energy-resolution …