Transuranic computational chemistry

N Kaltsoyannis - Chemistry–A European Journal, 2018 - Wiley Online Library
Recent developments in the chemistry of the transuranic elements are surveyed, with
particular emphasis on computational contributions. Examples are drawn from molecular …

Synthesis and multi-scale properties of PuO 2 nanoparticles: recent advances and open questions

M Virot, T Dumas, M Cot-Auriol, P Moisy… - Nanoscale …, 2022 - pubs.rsc.org
Due to the increased attention given to actinide nanomaterials, the question of their structure–
property relationship is on the spotlight of recent publications. Plutonium oxide (PuO2) …

Theoretical insights into the hydroxyl-promoted H2 releasing reaction after H2O splitting on Pu-oxide surfaces

L Zhang, B Sun, Q Zhang, H Liu, H Song - Journal of Nuclear Materials, 2023 - Elsevier
Abstract Within DFT+U-D3 scheme, we systematically investigate the reaction of H 2 O on
Pu-oxide surfaces to reveal the effects of* H/* OH produced by water splitting on subsequent …

Oxygen Vacancy Formation and Water Adsorption on Reduced AnO2{111}, {110}, and {100} Surfaces (An = U, Pu): A Computational Study

JPW Wellington, BE Tegner, J Collard… - The Journal of …, 2018 - ACS Publications
The substoichiometric {111},{110}, and {100} surfaces of UO2 and PuO2 are studied
computationally using two distinct yet related approaches based on density functional theory …

Unraveling the photocatalytic mechanisms for U (VI) reduction by TiO2

Q Wang, G Yang - Molecular Catalysis, 2022 - Elsevier
Photocatalytic reduction of U (VI) to U (IV) by TiO 2 offers a promising avenue to meet the
requirements of nuclear fuels and environmental control. In this study, DFT-D3 calculations …

Strongly bound surface water affects the shape evolution of cerium oxide nanoparticles

AR Symington, M Molinari, S Moxon… - The Journal of …, 2020 - ACS Publications
The surface structure and composition of functional materials are well-known to be critically
important factors controlling the surface reactivity. However, when doped the surface …

[HTML][HTML] Composition-dependent morphology of stoichiometric and oxygen deficient PuO2 nanoparticles in the presence of H2O and CO2: A density-functional theory …

S Moxon, JM Flitcroft, LJ Gillie, DJ Cooke… - Applied Surface …, 2024 - Elsevier
Among the most pressing challenges faced by the UK nuclear industry is how to safely
handle its large stockpile of plutonium dioxide. In particular, understanding how the exposed …

Study of Water Interaction with UO2, U2O5, and UO3: Tracking the Unexpected Reduction of Uranium Cations and Characterization of Surface-Bound Hydroxyls

G El Jamal, T Gouder, R Eloirdi, H Idriss… - The Journal of …, 2023 - ACS Publications
The interaction of water with the surfaces of metal oxides is important to many fields of
research, extending from nuclear science to catalysis to energy and biomedical materials …

Ab initio study of the adsorption of O, O2, H2O and H2O2 on UO2 surfaces using DFT+ U and non-collinear magnetism

I Arts, R Saniz, G Baldinozzi, G Leinders… - Journal of Nuclear …, 2024 - Elsevier
In order to model correctly the corrosion of spent nuclear fuel under disposal conditions, it is
important to understand its behavior in the presence of oxidants. To advance in this …

The adsorption thermodynamics of H2O and CO2 on PuO2 (1 1 1) surface: A comparative study based on DFT+ U-D3

L Zhang, B Sun, Q Zhang, H Liu, K Liu, H Song - Applied Surface Science, 2021 - Elsevier
The adsorption thermodynamics of active molecules on PuO 2 surface are very important for
the long-term storage and surface corrosion of Pu. Here, a comparative study is performed …