Preparation of tungsten oxide
Abstract
Tungsten trioxide hydrate (WO.sub.3.H.sub.2O) was prepared from a precursor solution of ammonium paratungstate in concentrated aqueous hydrochloric acid. The precursor solution was rapidly added to water, resulting in the crash precipitation of a yellow white powder identified as WO.sub.3.H.sub.2O nanosized platelets by x-ray diffraction and scanning electron microscopy. Annealing of the powder at 200.degree. C. provided cubic phase WO.sub.3 nanopowder, and at 400.degree. C. provided WO.sub.3 nanopowder as a mixture of monoclinic and orthorhombic phases.
- Inventors:
-
- Yankton, SD
- Los Alamos, NM
- Jemez Springs, NM
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 988694
- Patent Number(s):
- 7591984
- Application Number:
- 10/629,489
- Assignee:
- Los Alamos National Security, LLC (Los Alamos, NM)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- 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
Bulian, Christopher J, Dye, Robert C, Son, Steven F, Jorgensen, Betty S, and Perry, W Lee. Preparation of tungsten oxide. United States: N. p., 2009.
Web.
Bulian, Christopher J, Dye, Robert C, Son, Steven F, Jorgensen, Betty S, & Perry, W Lee. Preparation of tungsten oxide. United States.
Bulian, Christopher J, Dye, Robert C, Son, Steven F, Jorgensen, Betty S, and Perry, W Lee. Tue .
"Preparation of tungsten oxide". United States. https://www.osti.gov/servlets/purl/988694.
@article{osti_988694,
title = {Preparation of tungsten oxide},
author = {Bulian, Christopher J and Dye, Robert C and Son, Steven F and Jorgensen, Betty S and Perry, W Lee},
abstractNote = {Tungsten trioxide hydrate (WO.sub.3.H.sub.2O) was prepared from a precursor solution of ammonium paratungstate in concentrated aqueous hydrochloric acid. The precursor solution was rapidly added to water, resulting in the crash precipitation of a yellow white powder identified as WO.sub.3.H.sub.2O nanosized platelets by x-ray diffraction and scanning electron microscopy. Annealing of the powder at 200.degree. C. provided cubic phase WO.sub.3 nanopowder, and at 400.degree. C. provided WO.sub.3 nanopowder as a mixture of monoclinic and orthorhombic phases.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 22 00:00:00 EDT 2009},
month = {Tue Sep 22 00:00:00 EDT 2009}
}
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