Chemical and Isotopic Characterization of Noble Metal Phase from Commercial UO2Fuel

Kristi L. Pellegrini; Chuck Z. Soderquist; Steve D. Shen; Eirik J. Krogstad; Camille J. Palmer; Kyzer R. Gerez; Edgar C. Buck; Timothy G. Lach; Jon M. Schwantes; Richard A. Clark

doi:10.1021/acs.analchem.8b05549

Chemical and Isotopic Characterization of Noble Metal Phase from Commercial UO₂Fuel

Kristi L. Pellegrini, Chuck Z. Soderquist, Steve D. Shen, Eirik J. Krogstad, Camille J. Palmer, Kyzer R. Gerez, Edgar C. Buck, Timothy G. Lach, Jon M. Schwantes, Richard A. Clark

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

We report elemental and isotopic analysis for the noble metal fission product phase found in irradiated nuclear fuel. The noble metal phase was isolated from three commercial irradiated UO2 fuels by chemically dissolving the UO2 fuel matrix, leaving the noble metal phase as the undissolved residue. Macro amounts of this residue were dissolved using a KOH + KNO3 fusion and then chemically separated into individual elements for analysis by mass spectrometry. Though the composition of this phase has been previously reported, this work is the most comprehensive chemical analysis of the isolated noble metal phase to date. We report both elemental and isotopic abundances of the five major components of the noble metal phase (Mo, Tc, Ru, Rh, Pd). In addition, we report a sixth element present in high quantities in this phase, tellurium. Tellurium appears to be an integral component of noble metal particles.

Original language	English
Pages (from-to)	6522-6529
Number of pages	8
Journal	Analytical Chemistry
Volume	91
Issue number	10
DOIs	https://doi.org/10.1021/acs.analchem.8b05549
State	Published - May 21 2019
Externally published	Yes

Funding

This work was funded by Pacific Northwest National Laboratory under Laboratory Directed Research and Development (LDRD) funds with support from the Nuclear Process Science Initiative (NPSI). Pacific Northwest National Laboratory is operated by Battelle Memorial Institute for the United States Department of Energy under contract DE-AC05-76RL0-1830.

Funders	Funder number
Nuclear Process Science Initiative
U.S. Department of Energy	DE-AC05-76RL0-1830
Battelle
Laboratory Directed Research and Development
Pacific Northwest National Laboratory

Access to Document

10.1021/acs.analchem.8b05549

Cite this

@article{0fb2e239cd694ec6b318588437ea8b77,

title = "Chemical and Isotopic Characterization of Noble Metal Phase from Commercial UO2Fuel",

abstract = "We report elemental and isotopic analysis for the noble metal fission product phase found in irradiated nuclear fuel. The noble metal phase was isolated from three commercial irradiated UO2 fuels by chemically dissolving the UO2 fuel matrix, leaving the noble metal phase as the undissolved residue. Macro amounts of this residue were dissolved using a KOH + KNO3 fusion and then chemically separated into individual elements for analysis by mass spectrometry. Though the composition of this phase has been previously reported, this work is the most comprehensive chemical analysis of the isolated noble metal phase to date. We report both elemental and isotopic abundances of the five major components of the noble metal phase (Mo, Tc, Ru, Rh, Pd). In addition, we report a sixth element present in high quantities in this phase, tellurium. Tellurium appears to be an integral component of noble metal particles.",

author = "Pellegrini, {Kristi L.} and Soderquist, {Chuck Z.} and Shen, {Steve D.} and Krogstad, {Eirik J.} and Palmer, {Camille J.} and Gerez, {Kyzer R.} and Buck, {Edgar C.} and Lach, {Timothy G.} and Schwantes, {Jon M.} and Clark, {Richard A.}",

note = "Publisher Copyright: Copyright {\textcopyright} 2019 American Chemical Society.",

year = "2019",

month = may,

day = "21",

doi = "10.1021/acs.analchem.8b05549",

language = "English",

volume = "91",

pages = "6522--6529",

journal = "Analytical Chemistry",

issn = "0003-2700",

publisher = "American Chemical Society",

number = "10",

}

TY - JOUR

T1 - Chemical and Isotopic Characterization of Noble Metal Phase from Commercial UO2Fuel

AU - Pellegrini, Kristi L.

AU - Soderquist, Chuck Z.

AU - Shen, Steve D.

AU - Krogstad, Eirik J.

AU - Palmer, Camille J.

AU - Gerez, Kyzer R.

AU - Buck, Edgar C.

AU - Lach, Timothy G.

AU - Schwantes, Jon M.

AU - Clark, Richard A.

PY - 2019/5/21

Y1 - 2019/5/21

N2 - We report elemental and isotopic analysis for the noble metal fission product phase found in irradiated nuclear fuel. The noble metal phase was isolated from three commercial irradiated UO2 fuels by chemically dissolving the UO2 fuel matrix, leaving the noble metal phase as the undissolved residue. Macro amounts of this residue were dissolved using a KOH + KNO3 fusion and then chemically separated into individual elements for analysis by mass spectrometry. Though the composition of this phase has been previously reported, this work is the most comprehensive chemical analysis of the isolated noble metal phase to date. We report both elemental and isotopic abundances of the five major components of the noble metal phase (Mo, Tc, Ru, Rh, Pd). In addition, we report a sixth element present in high quantities in this phase, tellurium. Tellurium appears to be an integral component of noble metal particles.

AB - We report elemental and isotopic analysis for the noble metal fission product phase found in irradiated nuclear fuel. The noble metal phase was isolated from three commercial irradiated UO2 fuels by chemically dissolving the UO2 fuel matrix, leaving the noble metal phase as the undissolved residue. Macro amounts of this residue were dissolved using a KOH + KNO3 fusion and then chemically separated into individual elements for analysis by mass spectrometry. Though the composition of this phase has been previously reported, this work is the most comprehensive chemical analysis of the isolated noble metal phase to date. We report both elemental and isotopic abundances of the five major components of the noble metal phase (Mo, Tc, Ru, Rh, Pd). In addition, we report a sixth element present in high quantities in this phase, tellurium. Tellurium appears to be an integral component of noble metal particles.

UR - http://www.scopus.com/inward/record.url?scp=85065390606&partnerID=8YFLogxK

U2 - 10.1021/acs.analchem.8b05549

DO - 10.1021/acs.analchem.8b05549

M3 - Article

C2 - 31018634

AN - SCOPUS:85065390606

SN - 0003-2700

VL - 91

SP - 6522

EP - 6529

JO - Analytical Chemistry

JF - Analytical Chemistry

IS - 10

ER -

Chemical and Isotopic Characterization of Noble Metal Phase from Commercial UO₂Fuel

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this