An official website of the European Union How do you know?      
European Commission logo
JRC Publications Repository Menu

Effect of surface orientation on dissolution rate and surface dynamics of UO2 single crystals in nitric acid

cover
UO2 single crystals with (100), (110) and (111) oriented faces were dissolved in 2 mol.L-1 HNO3 at room temperature. The evolution of the topography of the surface was monitored and reliable dissolution rates corresponding to the three crystallographic orientations were determined under controlled hydrodynamic and chemical conditions. The dissolution tests of UO2 polished single crystals showed two different kinetic steps. During the first uncatalysed kinetic regime, the enhanced reactivity of the surface at defect sites was demonstrated. The second kinetic step was attributed to a catalysed dissolution mechanism involving species produced at the solid/solution interface during the first step.
2020-11-24
PERGAMON-ELSEVIER SCIENCE LTD
JRC122186
0010-938X (online),   
https://publications.jrc.ec.europa.eu/repository/handle/JRC122186,   
10.1016/j.corsci.2020.109020 (online),   
Language Citation
NameCountryCityType
Datasets
IDTitlePublic URL
Dataset collections
IDAcronymTitlePublic URL
Scripts / source codes
DescriptionPublic URL
Additional supporting files
File nameDescriptionFile type 
Show metadata record  Copy citation url to clipboard  Download BibTeX
Items published in the JRC Publications Repository are protected by copyright, with all rights reserved, unless otherwise indicated. Additional information: https://ec.europa.eu/info/legal-notice_en#copyright-notice