Tungsten Trioxide Nanorods Synthesis

Tungsten trioxide nanorods are synthesized by 2.77g of sodium tungstate and 4.77g of sodium dissolved in 67.5ml of water , stirring, adjusting 3mol / L hydrochloric acid to pH 1.5, stirring it 30min, heating it at 180 ℃ in above solution 48h, washing three times with ethanol, drying at 65 ℃ in the environment, it can be prepared nanorods of tungsten trioxide, which is a single crystal nanorods.

Tungsten trioxide nanorods are dissolved by sodium tungstate and sodium sulfate water, after stirring, adjusting the pH value, washing and drying to obtain tungsten trioxide nanorods. In the synthesis process, the selection of the sodium salt can be as director of synthesizing tungsten trioxide nanorods, and director is not the product of rod-shaped morphology.

Preparation of tungsten trioxide obtained nanorods can be observed by electron microscopy. Nanorods is 1-5μm in length, between 25-40nm in diameter, the tungsten trioxide has a high aspect ratio nanorods; the diameter of single trioxide nanorod is 30nm, the lattice fringes are clearly visible, this indicating is higher degree of crystallinity nanorods; this also shows the two intertwined lattice fringes, and hexagonal tungsten trioxide contrast can be found in the two planes are (001) and (200) planes, wherein the (001) planes are grown.

Although the tungsten trioxide nanorods preparation process shows a good prospect, it is still in the laboratory research stage. We should increase research and development, strengthen exchanges and cooperation in various fields between basic researches and make its research and application level to be improved, make it as soon as possible apply to industrial production.

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