Hydrothermal Synthesis Of Tungsten Oxide (WO3) Nanostructures Using Sodium Chloride As Structure Directing Agent
نویسنده
چکیده
Tungsten oxide (WO3) nanostructure were synthesized by a facile hydrothermal method at 150° C using tungstate dehydrates (Na2WO4.2H2O) as the precursor. Without any additive, scanning electron microscopy revealed a rhombus shaped WO3 nanostructures while with the addition of sodium chloride, the morphology changes to nano-dagger bundles that formed flower-like structure. Furthermore, the size of the nano-dagger can be controlled by changing the amount of NaCl additive. The Raman spectrum analysis suggested the fundamental modes of crystalline h-WO3 has been maintained among the different NaCl concentration groups despite of noticeable changes in their morphology structure. Keywords—hydrothermal; WO3; Directing Agent; Nano-dagger structure
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