Tungsten Trioxide-Graphene Catalytic Activity Exploration

Graphene is stripped out from graphite material, composed of carbon atoms, carrying with one atom thick two-dimensional crystals. Graphene is not only the thinnest material but also  the most robust materials; the fracture strength of it is even higher than the best steel 200 times. It has good flexibility, tensile amplitude and can reach 20% of its own size. It is the nature of the thinnest, highest material strength. On the other hand, it is very compact, even the smallest gas atom (helium atoms) can not penetrate. These features enable its application in various fields.

Catalytic activity refers to the ability of the catalytic substance; it is one of the important properties of the catalyst. There is a surface phenomenon because the size of the catalytic activity and the specific surface area of the solid, the nature and unit surface area on the surface of the active center of the active center of the quantity. To describe the differences in the catalytic activity of different substances, we can call the catalyst per unit surface area per unit time, which shows the amount of raw materials can be converted into a specific activity; the number of molecules in each of the active center in one second is called the turnover number of conversion or digital conversion.

The catalyst synthetic material of visible graphene tungsten trioxide (m-WO₃ @ RGO) is prepared from Photoreduction(the reduction reaction of organic compound in light of the role) Under visible light conditions (λ420nm), photocatalytic m-WO₃ @ RGO composites with 0.5wt% Pt , which leads oxygen speeds up the decomposition of aquatic 21.26μmolh-1.

The Combination of ordered mesoporous tungsten trioxide and two-dimensional structure of graphene can improve the transfernation of photogenerated electron activity of m-WO₃ @ RGO composites. This study effectively expands the graphene-based materials in the field of energy conversion applications. The discovery of graphene is the thinnest, highest intensity, the strongest thermal conductivity properties of a new type of nano-materials. The added -graphene metal well disperse in the substrate material, inhibiting their reunion because it has a higher ratio surface area, higher reactivity and selectivity.

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