Atomic-scale Studies of Uranium Oxidation and Corrosion by
WEBJul 12, 2016 · Uranium metal and its oxides have become synonymous with nuclear energy applications. Metallic uranium was used as the fuel material in the world’s first fission reactors but was subsequently...
Uranium Oxidation State Finally Revealed - Physics
WEBDec 17, 2013 · Understanding how uranium oxides transform from one to another is important for nuclear waste disposal. A new x-ray study of two uranium oxides reveals an oxidation state of uranium that had not previously been observed directly.
Accessing five oxidation states of uranium in a retained ligand ...
WEBAug 3, 2023 · Five oxidation states, uranium (II) to uranium (VI), are well established, with a recent addition of a molecular uranium (I) complex 12. Typically, low and high-valent uranium ions need a...
Uranium - Wikipedia
WEBUranium in its oxidation states III, IV, V, VI. Salts of many oxidation states of uranium are water-soluble and may be studied in aqueous solutions. The most common ionic forms are U 3+ (brown-red), U 4+ (green), UO + 2 (unstable), and UO 2+ 2 (yellow), for U(III), U(IV), U(V), and U(VI), respectively. [104]
Chemistry of Uranium - SpringerLink
WEBSep 14, 2021 · The main oxidation states and the preferred detection methods for uranium species are described. In case of uranium (VI) the luminescence emission properties as known up to now are compilated. Download chapter PDF. M. H. Klaproth discovered uranium in 1789. The pure metal was isolated in 1841 by E.-M. Peligot.
New theoretical insights into the actual oxidation states of uranium …
WEBJan 1, 2021 · Oxidation state (OS) is one of the most important concepts in chemistry and, the challenging task is how to rigorously determine the OS of multivalent solid ions of which uranium is the outstanding example.
The oxidative kinetics of uranium at different stages
WEBSep 1, 2022 · The oxidation kinetics of uranium was researched by the reflectance spectroscopy and the oxygen-consumption method. The kinetics models of uranium at different stage were established and the mechanism was analyzed.
Review A review of the mechanisms, reaction products and …
WEBJul 15, 2021 · Oxidation of uranium is a diffusion-controlled process where the oxidising agents must diffuse through the growing oxide layer to react with the metal underneath. Uranium dioxide (stoichiometric) and hydrogen gas are the standard products of …
Chemical State of Complex Uranium Oxides - Physical Review Link …
WEBDec 17, 2013 · We report here the first direct observation of U (V) in uranium binary oxides and analyze the gradual conversion of the U oxidation state in the mixed uranium systems.
Atomic-scale Studies of Uranium Oxidation and Corrosion by ... - PubMed
WEBJul 12, 2016 · These results support a proposed mechanism for the oxidation of uranium in water vapour environments where the transport of hydroxyl species and the formation of hydride are key to understanding the observed behaviour. Understanding the corrosion of uranium is important for its safe, long-term storage.
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