Academic Journal
Water corrosion of spent nuclear fuel:radiolysis driven dissolution at the UO 2 /water interface
| العنوان: | Water corrosion of spent nuclear fuel:radiolysis driven dissolution at the UO 2 /water interface |
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| المؤلفون: | Springell, Ross S, Rennie, Sophie L, Costelle, Leila, Darnbrough, James E, Stitt, C A D, Cocklin, Elizabeth, Lucas, Chris, Burrows, Robbert, Sims, Howard, Wermeille, Didier, Rawle, Jonathan, Nicklin, Chris, Nuttall , William, Scott, Thomas Bligh, Lander, Gerard |
| المصدر: | Springell , R S , Rennie , S L , Costelle , L , Darnbrough , J E , Stitt , C A D , Cocklin , E , Lucas , C , Burrows , R , Sims , H , Wermeille , D , Rawle , J , Nicklin , C , Nuttall , W , Scott , T B & Lander , G 2015 , ' Water corrosion of spent nuclear fuel : radiolysis driven dissolution at the UO 2 /water interface ' , Faraday Discussions , vol. 180 , pp. 301-311 . https://doi.org/10.1039/C4FD00254G |
| سنة النشر: | 2015 |
| المجموعة: | University of Bristol: Bristol Reserach |
| الوصف: | X-ray diffraction has been used to probe the radiolytic corrosion of uranium dioxide. Single crystal thin films of UO 2 were exposed to an intense X-ray beam at a synchrotron source in the presence of water, in order to simultaneously provide radiation fields required to split the water into highly oxidising radiolytic products, and to probe the crystal structure and composition of the UO 2 layer, and the morphology of the UO 2 /water interface. By modeling the electron density, surface roughness and layer thickness, we have been able to reproduce the observed reflectivity and diffraction profiles and detect changes in oxide composition and rate of dissolution at the Ångström level, over a timescale of several minutes. A finite element calculation of the highly oxidising hydrogen peroxide product suggests that a more complex surface interaction than simple reaction with H 2 O 2 is responsible for an enhancement in the corrosion rate directly at the interface of water and UO 2 , and this may impact on models of long-term storage of spent nuclear fuel. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| DOI: | 10.1039/C4FD00254G |
| الاتاحة: | https://hdl.handle.net/1983/85a530c1-7d9f-43b2-9279-27f2dce6ee7e https://research-information.bris.ac.uk/en/publications/85a530c1-7d9f-43b2-9279-27f2dce6ee7e https://doi.org/10.1039/C4FD00254G https://research-information.bris.ac.uk/ws/files/64940380/c4fd00254g.pdf http://www.scopus.com/inward/record.url?scp=84937417140&partnerID=8YFLogxK |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.CE0E5D18 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1039/C4FD00254G |
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