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) …

Water on actinide dioxide surfaces: a review of recent progress

G Wang, ER Batista, P Yang - Applied Sciences, 2020 - mdpi.com
The fluorite structured actinide dioxides (AnO2), especially UO2, are the most common
nuclear fuel materials. A comprehensive understanding of their surface chemistry is critical …

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 …

[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 …

Composition-dependent morphologies of CeO 2 nanoparticles in the presence of Co-adsorbed H 2 O and CO 2: a density functional theory study

S Moxon, AR Symington, ST Joshua, JM Flitcroft… - Nanoscale, 2024 - pubs.rsc.org
Catalytic activity is affected by surface morphology, and specific surfaces display greater
activity than others. A key challenge is to define synthetic strategies to enhance the …

Thermodynamic evolution of cerium oxide nanoparticle morphology using carbon dioxide

AR Symington, RM Harker, MT Storr… - The Journal of …, 2020 - ACS Publications
Surface morphology is known to affect catalytic activity, as some surfaces show greater
activity than others. One of the key challenges is to identify strategies to enhance the …

Strain Effects on the Adsorption of Water on Cerium Dioxide Surfaces and Nanoparticles: A Modeling Outlook

S Munir, KM Ta, T Smith, LJ Gillie… - The Journal of …, 2024 - ACS Publications
Nanocrystalline ceria exhibits significant redox activity and oxygen storage capacity. Any
factor affecting its morphology can tune such activities. Strain is a promising method for …

The adsorption of carbon and nitrogen oxides on the PuO2 {110} surface: A DFT+ U study

JL Chen, N Kaltsoyannis - Journal of Nuclear Materials, 2024 - Elsevier
The adsorptions of CO, CO 2, N 2 O, NO and NO 2 on the PuO 2 {110} surface have been
studied using density functional theory with a Hubbard U correction. Different approaching …

Structure and Properties of Cubic PuH2 and PuH3: A Density Functional Theory Study

T Smith, S Moxon, DJ Cooke, LJ Gillie, RM Harker… - Crystals, 2022 - mdpi.com
The presence of cubic PuH2 and PuH3, the products of hydrogen corrosion of Pu, during
long-term storage is of concern because of the materials' pyrophoricity and ability to catalyse …

First-principles calculation of structural, magnetic and electronic properties of PuO2-xHx, 0≤ x≤ 2

H Gao, M Li, Y Yang, P Zhang - Journal of Alloys and Compounds, 2021 - Elsevier
First-principles calculations with generalized gradient approximation (GGA) plus U method
as well as Heyd-Scuseria-Ernzerhof (HSE) screened Coulomb hybrid density functional …