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Tungsten oxide (WO3) nanocrystals with various nanomorphologies were synthesized by solvothermal method using tungsten hexachloride (WCl6) as a raw material and pure ethylene glycol (EG) or water–EG as reaction solvent, and the NO2-sensing properties of the WO3 nanocrystals were studied. The morphology and crystal structure were investigated by field emission scanning electron microscope (SEM), X-ray...
We report self assembly and organisation of graphene sheets to form a macroscopically ordered array of graphene layers using one step reduction of graphene oxide. Aqueous extract of dry leaves of Artemisia vulgaris is used for de-oxygenation of graphene oxide. The reduced graphene oxide samples are investigated for two different reflux times viz. for 6h and 12h. It is found that for an efficient reduction...
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