Uranium Oxide Nanocrystals by Microwave-Assisted Thermal Decomposition: Electronic and Structural Properties
Abstract
Uranium oxides have attracted much attention not only in the context of nuclear energy generation but also for their application as pristine catalysts or as supports for other (transition metal) oxides and (precious) metals. Their propensity to adopt high coordination numbers and manifest multiple oxidation states (from +II to +VI) makes them attractive candidates for catalyzed transformation reactions. In this paper, we report a new synthesis route to phase-pure, crystalline UO2 nanoparticles via microwave-assisted decomposition of a molecular uranium(IV) precursor. Finally, the electronic structure and optical absorption properties of these nanocrystals were investigated using spectroscopic methods to evaluate their suitability for photo(electro)catalytic applications.
- Authors:
-
- Univ. of Cologne (Germany). Inst. of Inorganic Chemistry
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). The Glenn T. Seaborg Center. Chemical Sciences Division
- Tamkang Univ., Taipei (Taiwan). Dept. of Physics
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); German Research Foundation (DFG); Fonds der Chemischen Industrie (Germany)
- OSTI Identifier:
- 1432247
- Alternate Identifier(s):
- OSTI ID: 1410832
- Grant/Contract Number:
- AC02-05CH11231; SPP 1613
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Zeitschrift fuer Anorganische und Allgemeine Chemie
- Additional Journal Information:
- Journal Volume: 644; Journal Issue: 1; Related Information: © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim; Journal ID: ISSN 0044-2313
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; in-situ x-ray absorption spectroscopy; scanning transmission x-ray microscopy (STXM); photocatalysis; uranium; UO2 nanoparticles; microwave chemistry
Citation Formats
Leduc, Jennifer, Pacold, Joseph I., Shuh, David K., Dong, Chung-Li, and Mathur, Sanjay. Uranium Oxide Nanocrystals by Microwave-Assisted Thermal Decomposition: Electronic and Structural Properties. United States: N. p., 2017.
Web. doi:10.1002/zaac.201700294.
Leduc, Jennifer, Pacold, Joseph I., Shuh, David K., Dong, Chung-Li, & Mathur, Sanjay. Uranium Oxide Nanocrystals by Microwave-Assisted Thermal Decomposition: Electronic and Structural Properties. United States. https://doi.org/10.1002/zaac.201700294
Leduc, Jennifer, Pacold, Joseph I., Shuh, David K., Dong, Chung-Li, and Mathur, Sanjay. Tue .
"Uranium Oxide Nanocrystals by Microwave-Assisted Thermal Decomposition: Electronic and Structural Properties". United States. https://doi.org/10.1002/zaac.201700294. https://www.osti.gov/servlets/purl/1432247.
@article{osti_1432247,
title = {Uranium Oxide Nanocrystals by Microwave-Assisted Thermal Decomposition: Electronic and Structural Properties},
author = {Leduc, Jennifer and Pacold, Joseph I. and Shuh, David K. and Dong, Chung-Li and Mathur, Sanjay},
abstractNote = {Uranium oxides have attracted much attention not only in the context of nuclear energy generation but also for their application as pristine catalysts or as supports for other (transition metal) oxides and (precious) metals. Their propensity to adopt high coordination numbers and manifest multiple oxidation states (from +II to +VI) makes them attractive candidates for catalyzed transformation reactions. In this paper, we report a new synthesis route to phase-pure, crystalline UO2 nanoparticles via microwave-assisted decomposition of a molecular uranium(IV) precursor. Finally, the electronic structure and optical absorption properties of these nanocrystals were investigated using spectroscopic methods to evaluate their suitability for photo(electro)catalytic applications.},
doi = {10.1002/zaac.201700294},
journal = {Zeitschrift fuer Anorganische und Allgemeine Chemie},
number = 1,
volume = 644,
place = {United States},
year = {Tue Nov 14 00:00:00 EST 2017},
month = {Tue Nov 14 00:00:00 EST 2017}
}
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Figures / Tables:
Figure 1: TG-DTA analysis of [U(DMOTFP)4] performed under nitrogen atmosphere with a heating rate of 10 °C/min. The predetermined breaking points are indicated in green.
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Figures / Tables found in this record:
Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.