New insight into UO2F2 particulate structure by micro-Raman spectroscopy
Abstract
Uranyl fluoride particles produced via hydrolysis of uranium hexafluoride have been deposited on different substrates: polished graphite disks, silver foil, stainless steel and gold-coated silicon wafer, and measured with micro-Raman spectroscopy (MRS). All three metallic substrates enhanced the Raman signal delivered by UO2F2 in comparison to graphite. The fundamental stretching of the U–O band appeared at 867 cm–1 in case of the graphite substrate, while in case of the others it was shifted to lower frequencies (down to 839 cm–1). All applied metallic substrates showed the expected effect of Raman signal enhancement; however the gold layer appeared to be most effective. Lastly, application of new substrates provides more information on the molecular structure of uranyl fluoride precipitation, which is interesting for nuclear safeguards and nuclear environmental analysis.
- Authors:
-
- Univ. of Lublin, Lublin (Poland); European Commission Joint Research Centre, Retieseweg (Belgium)
- Univ. of Antwerp, Antwerp (Belgium)
- European Commission Joint Research Centre, Retieseweg (Belgium)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1248263
- Report Number(s):
- LLNL-JRNL-623434
Journal ID: ISSN 0022-2860
- Grant/Contract Number:
- AC52-07NA27344
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Molecular Structure
- Additional Journal Information:
- Journal Volume: 1040; Journal Issue: C; Journal ID: ISSN 0022-2860
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 11 NUCLEAR FUEL CYCLE AND RUEL MATERIALS; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; uranyl fluoride; uranium particles; UF6 hydrolysis; micro-Raman spectroscopy; nuclear safeguards
Citation Formats
Stefaniak, Elzbieta A., Darchuk, Larysa, Sapundjiev, Danislav, Kips, Ruth E., Aregbe, Yetunde, and Grieken, Rene Van. New insight into UO2F2 particulate structure by micro-Raman spectroscopy. United States: N. p., 2013.
Web. doi:10.1016/j.molstruc.2013.02.012.
Stefaniak, Elzbieta A., Darchuk, Larysa, Sapundjiev, Danislav, Kips, Ruth E., Aregbe, Yetunde, & Grieken, Rene Van. New insight into UO2F2 particulate structure by micro-Raman spectroscopy. United States. https://doi.org/10.1016/j.molstruc.2013.02.012
Stefaniak, Elzbieta A., Darchuk, Larysa, Sapundjiev, Danislav, Kips, Ruth E., Aregbe, Yetunde, and Grieken, Rene Van. Tue .
"New insight into UO2F2 particulate structure by micro-Raman spectroscopy". United States. https://doi.org/10.1016/j.molstruc.2013.02.012. https://www.osti.gov/servlets/purl/1248263.
@article{osti_1248263,
title = {New insight into UO2F2 particulate structure by micro-Raman spectroscopy},
author = {Stefaniak, Elzbieta A. and Darchuk, Larysa and Sapundjiev, Danislav and Kips, Ruth E. and Aregbe, Yetunde and Grieken, Rene Van},
abstractNote = {Uranyl fluoride particles produced via hydrolysis of uranium hexafluoride have been deposited on different substrates: polished graphite disks, silver foil, stainless steel and gold-coated silicon wafer, and measured with micro-Raman spectroscopy (MRS). All three metallic substrates enhanced the Raman signal delivered by UO2F2 in comparison to graphite. The fundamental stretching of the U–O band appeared at 867 cm–1 in case of the graphite substrate, while in case of the others it was shifted to lower frequencies (down to 839 cm–1). All applied metallic substrates showed the expected effect of Raman signal enhancement; however the gold layer appeared to be most effective. Lastly, application of new substrates provides more information on the molecular structure of uranyl fluoride precipitation, which is interesting for nuclear safeguards and nuclear environmental analysis.},
doi = {10.1016/j.molstruc.2013.02.012},
journal = {Journal of Molecular Structure},
number = C,
volume = 1040,
place = {United States},
year = {Tue Feb 19 00:00:00 EST 2013},
month = {Tue Feb 19 00:00:00 EST 2013}
}
Web of Science
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Works referencing / citing this record:
Characterization of uranium tetrafluoride (UF 4 ) with Raman spectroscopy : Characterization of UF
journal, March 2016
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