A Facile Route to Tungsten Oxide Nano Materials (I)

Details: Category: Tungsten Information; Published on Friday, 06 February 2015 16:39; Written by cq; Hits: 1519

Nano-sized materials and products have been used widely in many applications because of their outstanding properties, different from those of the bulk materials. In early investigations into nanotechnology, the arc discharge technique was the first well-developed method used to manufacture nanoproducts.

However, owing to difficulties involved in controlling the manufacturing parameters, the purity and quality of nanoproducts synthesized by arc discharge called for improvement. The inert gas condensation (IGC) system was thus established by Gleiter. Because there are no catalysts or containments, it is considered the cleanest method of producing high quality products. In this system, metals are first placed in a tungsten or graphite boat and evaporated. The metal vapor is then cooled under an inert gas atmosphere (e.g. helium or argon) to condense into clusters or nanoparticles.

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