A green route for microwave synthesis of sodium tungsten bronzes Na{sub x}WO{sub 3} (0<x<1)
- National Laboratory for Superconductivity, Institute of Physics, Chinese Academy of Sciences, Zhongguancun South 3 Street, Haid, P.O. Box 603, Beijing 100080 (China)
A green route has been developed for microwave synthesis of sodium tungsten bronzes Na{sub x}WO{sub 3} (0<x<1) from Na{sub 2}WO{sub 4}, WO{sub 3} and tungsten powder. The hybrid microwave synthesis was carried out in argon atmosphere using CuO powder as the heating medium. Tungsten powder is used as the reducing agent instead of the alkali metal iodides previously used for the microwave synthesis of oxide bronzes. The prepared samples were characterized by powder X-ray diffraction, energy-dispersive X-ray analysis and scanning electron microscopy, and their phase constitutions, crystal structures and morphologies are in consistence with that in the literature. This synthesis method is simple, green and atom economic, and promising for preparation of other oxide bronzes and related compounds.
- OSTI ID:
- 20721666
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 1 Vol. 178; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
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