Uranium minerals and their relevance to long term storage of nuclear fuels

RJ Baker - Coordination Chemistry Reviews, 2014 - Elsevier
The storage of spent nuclear fuels for long periods of time in geological repositories is one
proposed solution to the stewardship of legacy, current and future nuclear waste. Recent …

Predicting stability constants for uranyl complexes using density functional theory

S Vukovic, BP Hay, VS Bryantsev - Inorganic chemistry, 2015 - ACS Publications
The ability to predict the equilibrium constants for the formation of 1: 1 uranyl/ligand
complexes (log K 1 values) provides the essential foundation for the rational design of …

Study of the thermal stability of studtite by in situ Raman spectroscopy and DFT calculations

F Colmenero, LJ Bonales, J Cobos, V Timón - Spectrochimica Acta Part A …, 2017 - Elsevier
The design of a safe spent nuclear fuel repository requires the knowledge of the stability of
the secondary phases which precipitate when water reaches the fuel surface. Studtite is …

Spontaneous electrochemical uranium extraction from wastewater with net electrical energy production

Y Ye, J Jin, W Han, S Miao, Y Feng, Z Qin, X Tang, C Li… - Nature Water, 2023 - nature.com
Extracting uranium from uranium mine wastewater is highly important from both the
environmental protection and the resource preservation perspectives. However …

The thermal decomposition of studtite: analysis of the amorphous phase

NBA Thompson, VL Frankland, JWG Bright… - … of Radioanalytical and …, 2021 - Springer
Studtite is known to exist at the back-end of the nuclear fuel cycle as an intermediate phase
formed in the reprocessing of spent nuclear fuel. In the thermal decomposition of studtite, an …

Structure and Reactivity of X-ray Amorphous Uranyl Peroxide, U2O7

SO Odoh, J Shamblin, CA Colla, S Hickam… - Inorganic …, 2016 - ACS Publications
Recent accidents resulting in worker injury and radioactive contamination occurred due to
pressurization of uranium yellowcake drums produced in the western USA The drums …

Becquerelite mineral phase: crystal structure and thermodynamic and mechanical stability by using periodic DFT

F Colmenero, AM Fernández, V Timón, J Cobos - RSC advances, 2018 - pubs.rsc.org
The structure, thermodynamic and mechanical properties of becquerelite mineral, Ca (UO2)
6O4 (OH) 6· 8H2O, were studied by means of theoretical solid-state calculations based on …

Superoxide Radicals in Uranyl Peroxide Solids: Lasting Signatures Identified by Electron Paramagnetic Resonance Spectroscopy

SK Scherrer, C Gates, H Rajapaksha… - Angewandte …, 2024 - Wiley Online Library
U (VI) peroxide phases (studtite and meta‐studtite) are found throughout the nuclear fuel
cycle and exist as corrosion products in high radiation fields. Peroxides are part of a family of …

Spectroscopic Raman characterization of rutherfordine: a combined DFT and experimental study

LJ Bonales, F Colmenero, J Cobos… - Physical Chemistry …, 2016 - pubs.rsc.org
A rutherfordine mineral was studied by means of Raman spectroscopy combined with first
principle calculations based on the density functional theory (DFT) method. The …

Nuclear proliferomics: A new field of study to identify signatures of nuclear materials as demonstrated on alpha-UO3

IJ Schwerdt, A Brenkmann, S Martinson, BD Albrecht… - Talanta, 2018 - Elsevier
The use of a limited set of signatures in nuclear forensics and nuclear safeguards may
reduce the discriminating power for identifying unknown nuclear materials, or for verifying …