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Title: Transformation of Uranyl Peroxide Studtite, [(UO2)(O2)(H2O)2](H2O)2, to Soluble Nanoscale Cage Clusters

Abstract

The dissolution behavior of uranyl peroxide studtite, [(UO2)(O2)(H2O)2](H2O)2, was examined under a wide range of alkaline aqueous environments with and without the addition of hydrogen peroxide. In the absence of added H2O2, studtite dissolved in aqueous solutions with a tetraethylammonium hydroxide to uranium molar ratio greater than 0.5, and the resulting species in solution characterized by Raman spectroscopy and electrospray ionization mass spectrometry (ESI-MS) is the uranyl peroxide nanocluster U24, [(UO2)(O2)(OH)]2424–. This is the first demonstration of the formation of uranyl peroxide nanoclusters from studtite in a solution lacking additional hydrogen peroxide. In similar systems containing added hydrogen peroxide (0.01 M – 1.0 M), studtite dissolved in solutions with a TEAOH to uranium ratio greater than 0.1, and the resulting uranyl peroxide species in solution was U28, [(UO2)(O2)1.5]2828–.

Authors:
 [1];  [1]; ORCiD logo [1]
  1. Univ. of Notre Dame, Notre Dame, IN (United States)
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Materials Science of Actinides (MSA); Univ. of Notre Dame, IN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1510990
Grant/Contract Number:  
NA0003763
Resource Type:
Accepted Manuscript
Journal Name:
Inorganic Chemistry
Additional Journal Information:
Journal Volume: 58; Journal Issue: 10; Journal ID: ISSN 0020-1669
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Lobeck, Haylie L., Isner, Jordan K., and Burns, Peter C.. Transformation of Uranyl Peroxide Studtite, [(UO2)(O2)(H2O)2](H2O)2, to Soluble Nanoscale Cage Clusters. United States: N. p., 2019. Web. https://doi.org/10.1021/acs.inorgchem.9b00230.
Lobeck, Haylie L., Isner, Jordan K., & Burns, Peter C.. Transformation of Uranyl Peroxide Studtite, [(UO2)(O2)(H2O)2](H2O)2, to Soluble Nanoscale Cage Clusters. United States. https://doi.org/10.1021/acs.inorgchem.9b00230
Lobeck, Haylie L., Isner, Jordan K., and Burns, Peter C.. Wed . "Transformation of Uranyl Peroxide Studtite, [(UO2)(O2)(H2O)2](H2O)2, to Soluble Nanoscale Cage Clusters". United States. https://doi.org/10.1021/acs.inorgchem.9b00230. https://www.osti.gov/servlets/purl/1510990.
@article{osti_1510990,
title = {Transformation of Uranyl Peroxide Studtite, [(UO2)(O2)(H2O)2](H2O)2, to Soluble Nanoscale Cage Clusters},
author = {Lobeck, Haylie L. and Isner, Jordan K. and Burns, Peter C.},
abstractNote = {The dissolution behavior of uranyl peroxide studtite, [(UO2)(O2)(H2O)2](H2O)2, was examined under a wide range of alkaline aqueous environments with and without the addition of hydrogen peroxide. In the absence of added H2O2, studtite dissolved in aqueous solutions with a tetraethylammonium hydroxide to uranium molar ratio greater than 0.5, and the resulting species in solution characterized by Raman spectroscopy and electrospray ionization mass spectrometry (ESI-MS) is the uranyl peroxide nanocluster U24, [(UO2)(O2)(OH)]2424–. This is the first demonstration of the formation of uranyl peroxide nanoclusters from studtite in a solution lacking additional hydrogen peroxide. In similar systems containing added hydrogen peroxide (0.01 M – 1.0 M), studtite dissolved in solutions with a TEAOH to uranium ratio greater than 0.1, and the resulting uranyl peroxide species in solution was U28, [(UO2)(O2)1.5]2828–.},
doi = {10.1021/acs.inorgchem.9b00230},
journal = {Inorganic Chemistry},
number = 10,
volume = 58,
place = {United States},
year = {2019},
month = {5}
}

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    Works referencing / citing this record:

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