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  • 1 Institute for Transuranium Elements European Commission, Joint Research Centre D-76125 Karlsruhe Germany
  • | 2 GSF National Research Centre for Environment and Health Department of Hydrology D-85764 Neuherberg Germany
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Abstract  

The influence of aqueous silica of two different physical forms (dissolved ions and SiO2 colloid) on the dissolution of UO2 nuclear fuel material was investigated at 95 °C temperature in autoclaves. It was tested that SiO2 colloids can contribute to the surface degradation or act as carrier for uranium ions during a near field geochemical dissolution process. In the presence of colloids, well-crystallized secondary phases containing U and Si were formed on the surfaces, the latter attacked by the treatment. This was not the case when dissolved Si was used. SiO2 colloids were partly found in their original form on the surfaces after 1000 hours at 95 °C. A surface charge model suggests that this different effects are due to the development of electrostatic interactions between the UO2 and SiO2 surfaces.

Manuscript Submission: HERE

  • Impact Factor (2019): 1.137
  • Scimago Journal Rank (2019): 0.360
  • SJR Hirsch-Index (2019): 65
  • SJR Quartile Score (2019): Q3 Analytical Chemistry
  • SJR Quartile Score (2019): Q3 Health, Toxicology and Mutagenesis
  • SJR Quartile Score (2019): Q2 Nuclear Energy and Engineering
  • SJR Quartile Score (2019): Q3 Pollution
  • SJR Quartile Score (2019): Q3 Public Health, Environmental and Occupational Health
  • SJR Quartile Score (2019): Q3 Radiology, Nuclear Medicine and Imaging
  • SJR Quartile Score (2019): Q3 Spectroscopy
  • Impact Factor (2018): 1.186
  • Scimago Journal Rank (2018): 0.408
  • SJR Hirsch-Index (2018): 60
  • SJR Quartile Score (2018): Q2 Nuclear Energy and Engineering
  • SJR Quartile Score (2018): Q2 Pollution

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
4
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)