Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Stability of Solid Uranyl Peroxides under Irradiation

Journal Article · · Inorganic Chemistry
 [1];  [2];  [3];  [3];  [4];  [5]
  1. Univ. of Notre Dame, IN (United States). Radiation Lab.; University of Notre Dame
  2. Univ. of Notre Dame, IN (United States). Radiation Lab.
  3. Univ. of Notre Dame, IN (United States). Dept. of Civil and Environmental Engineering and Earth Sciences
  4. Univ. of Notre Dame, IN (United States). Dept. of Civil and Environmental Engineering and Earth Sciences, and Dept. of Chemistry and Biochemistry
  5. Univ. of Notre Dame, IN (United States). Radiation Lab., and Dept. of Physics
+ Show Author Affiliations
The effects of radiation on a variety of uranyl peroxide compounds were examined using γ-rays and 5 MeV He ions, the latter to simulate α-particles. The studied materials were studtite, [(UO2)(O2)(H2O)2](H2O)2, the salt of the U60 uranyl peroxide cage cluster, Li44K16[(UO2)(O2)(OH)]60·255H2O, the salt of U60Ox30 uranyl peroxide oxalate cage cluster, Li12K48[{(UO2)(O2)}60(C2O4)30]·$$n$$H2O, and the salt of the U24Pp12 (Pp = pyrophosphate) uranyl peroxide pyrophosphate cage cluster, Li24Na24[(UO2)24(O2)24(P2O7)12]·120H2O. Irradiated powders were characterized using powder X-ray diffraction, Raman spectroscopy, infrared spectroscopy, X-ray photoelectron spectroscopy, and UV–vis spectroscopy. A weakening of the uranyl bonds of U60 was found while studtite, U60Ox30, and U24Pp12 were relatively stable to $$γ$$-irradiation. Studtite and U60 are the most affected by α-irradiation forming an amorphous uranyl peroxide as characterized by Raman spectroscopy and powder X-ray diffraction while U60Ox30 and U24Pp12 show minor signs of the formation of an amorphous uranyl peroxide.
Research Organization:
Univ. of Notre Dame, IN (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0003763
OSTI ID:
1567845
Journal Information:
Inorganic Chemistry, Journal Name: Inorganic Chemistry Journal Issue: none Vol. none; ISSN 0020-1669
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

Similar Records

In Situ Raman Spectroscopy of Uranyl Peroxide Nanoscale Cage Clusters Under Hydrothermal Conditions
Journal Article · Mon Dec 31 19:00:00 EST 2018 · Dalton Transactions · OSTI ID:1510719
Prediction of Solution Behavior via Calorimetric Measurements Allows for Detailed Elucidation of Polyoxometalate Transformation
Journal Article · Wed Apr 14 20:00:00 EDT 2021 · Inorganic Chemistry · OSTI ID:1782109
Evidence for non-electrostatic interactions between a pyrophosphate-functionalized uranyl peroxide nanocluster and iron (hydr)oxide minerals
Journal Article · Mon Jun 03 20:00:00 EDT 2019 · Environmental Science: Processes & Impacts · OSTI ID:1528906

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY