XPS determination of uranium oxidation states
This contribution is both a review of different aspects of X‐ray photoelectron spectroscopy
that can help one determine U oxidation states and a personal perspective on how to …
that can help one determine U oxidation states and a personal perspective on how to …
Evolution of uranium and thorium minerals
RM Hazen, RC Ewing… - American …, 2009 - pubs.geoscienceworld.org
The origins and near-surface distributions of the~ 250 known uranium and/or thorium
minerals elucidate principles of mineral evolution. This history can be divided into four …
minerals elucidate principles of mineral evolution. This history can be divided into four …
Used Fuel And Uranium Dioxide Dissolution Studies-A Review Report No.: Nwmo-Tr-2007-03
DW Shoesmith - NACE CORROSION, 2008 - onepetro.org
The extensive studies of used fuel dissolution inside a failed nuclear waste container have
been reviewed. The primary controlling factor is the redox condition set at the fuel surface by …
been reviewed. The primary controlling factor is the redox condition set at the fuel surface by …
Comparative dissolution kinetics of biogenic and chemogenic uraninite under oxidizing conditions in the presence of carbonate
The long-term stability of biogenic uraninite with respect to oxidative dissolution is pivotal to
the success of in situ bioreduction strategies for the subsurface remediation of uranium …
the success of in situ bioreduction strategies for the subsurface remediation of uranium …
Reduction of U (VI) incorporated in the structure of hematite
U (VI) doped hematite was synthesized and exposed to two different organic reductants with
E 0 of 0.23 and 0.70 V. A combination of HAADF-TEM and EXAFS provided evidence that …
E 0 of 0.23 and 0.70 V. A combination of HAADF-TEM and EXAFS provided evidence that …
Kinetic Study of the Oxidative Dissolution of UO2 in Aqueous Carbonate Media
SM Peper, LF Brodnax, SE Field… - Industrial & …, 2004 - ACS Publications
The oxidative dissolution of uranium (IV) dioxide powder at room temperature in aqueous
carbonate media has been investigated. Kinetic studies evaluating the efficacy of various …
carbonate media has been investigated. Kinetic studies evaluating the efficacy of various …
Exploring the Change in Redox Reactivity of UO2 Induced by Exposure to Oxidants in HCO3– Solution
Understanding the possible change in UO2 surface reactivity after exposure to oxidants is of
key importance when assessing the impact of spent nuclear fuel dissolution on the safety of …
key importance when assessing the impact of spent nuclear fuel dissolution on the safety of …
Uranium reduction on magnetite: Probing for pentavalent uranium using electrochemical methods
Pentavalent uranium is generally treated as an unstable intermediate when uranyl, U (VI) O
2 2+, is reduced to U 4+. However, mineral surfaces have been shown to stabilize …
2 2+, is reduced to U 4+. However, mineral surfaces have been shown to stabilize …
The role of surface-bound hydroxyl radicals in the reaction between H2O2 and UO2
A Barreiro Fidalgo, Y Kumagai… - Journal of Coordination …, 2018 - Taylor & Francis
In this work, we have studied the reaction between H2O2 and UO2 with particular focus on
the nature of the hydroxyl radical formed as an intermediate. Experiments were performed to …
the nature of the hydroxyl radical formed as an intermediate. Experiments were performed to …
Beam induced reduction of U (VI) during X-ray photoelectron spectroscopy: the utility of the U4f satellite structure for identifying uranium oxidation states in mixed …
Reduction of UVI by the beam during X-ray photoelectron spectroscopy (XPS) is a
commonly observed phenomenon. This can affect the determination of the U oxidation state …
commonly observed phenomenon. This can affect the determination of the U oxidation state …