Low-temperature synthesis of actinide tetraborides by solid-state metathesis reactions
Abstract
The synthesis of actinide tetraborides including uranium tetraboride (UB.sub.4), plutonium tetraboride (PuB.sub.4) and thorium tetraboride (ThB.sub.4) by a solid-state metathesis reaction are demonstrated. The present method significantly lowers the temperature required to .ltoreq.850.degree. C. As an example, when UCl.sub.4 is reacted with an excess of MgB.sub.2, at 850.degree. C., crystalline UB.sub.4 is formed. Powder X-ray diffraction and ICP-AES data support the reduction of UCl.sub.3 as the initial step in the reaction. The UB.sub.4 product is purified by washing water and drying.
- Inventors:
-
- Los Alamos, NM
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 935573
- Patent Number(s):
- 6830738
- Application Number:
- 10/115,087
- Assignee:
- The United States of America as represented by the United States Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01F - COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Lupinetti, Anthony J, Garcia, Eduardo, and Abney, Kent D. Low-temperature synthesis of actinide tetraborides by solid-state metathesis reactions. United States: N. p., 2004.
Web.
Lupinetti, Anthony J, Garcia, Eduardo, & Abney, Kent D. Low-temperature synthesis of actinide tetraborides by solid-state metathesis reactions. United States.
Lupinetti, Anthony J, Garcia, Eduardo, and Abney, Kent D. Tue .
"Low-temperature synthesis of actinide tetraborides by solid-state metathesis reactions". United States. https://www.osti.gov/servlets/purl/935573.
@article{osti_935573,
title = {Low-temperature synthesis of actinide tetraborides by solid-state metathesis reactions},
author = {Lupinetti, Anthony J and Garcia, Eduardo and Abney, Kent D},
abstractNote = {The synthesis of actinide tetraborides including uranium tetraboride (UB.sub.4), plutonium tetraboride (PuB.sub.4) and thorium tetraboride (ThB.sub.4) by a solid-state metathesis reaction are demonstrated. The present method significantly lowers the temperature required to .ltoreq.850.degree. C. As an example, when UCl.sub.4 is reacted with an excess of MgB.sub.2, at 850.degree. C., crystalline UB.sub.4 is formed. Powder X-ray diffraction and ICP-AES data support the reduction of UCl.sub.3 as the initial step in the reaction. The UB.sub.4 product is purified by washing water and drying.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {12}
}
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