Graphene - a miracle material |
Posted: May 22, 2018 |
Grapphene in a nutshell A Honey-comb shaped layer which his only is an atom thick is taking over the world by storm. It is a semi-metal. It is light, tough, strong, stiff yet elastic; this material is known as graphene. Production of graphene CVD method is executed by mixing and depositing volatile gas molecules onto a substrate. The process takes place in a reaction/ vacuum chamber. In the chamber the material is formed on the surface of the substrate through the process of adsorption and then waste gases are pumped out from the other end. Temperature and pressure play an important role in the making of graphene through this process. CVD produces graphene films of high quality and also in large quantity. Other processes are also used in the industry to make graphene such as Liquid phase and thermal exfoliation and by the sublimation of Silicon Carbide. Graphene-oriented products and their uses Graphene being a multipurpose material has a variety of usage and so can be customized to suit it better to the consumers. Graphene Series products which are available on ACS Material store provide a large range of graphene-oriented products. These products include rGO (Reduced Graphene Oxide) it can be used in water purification, flexible rechargeable battery electrodes etc. Graphene dispersion in NMP is another product from this series, it can be used to make super capacitors for energy storage, it can be used as a catalyst, can also be used in biomaterials. Jaw-dropping properties of graphene Graphene is a highly transparent material each layer in thickness absorbs up to 2.3% of white light which is efficient. A suspended graphene sheet can exhibit a thermal conductivity of 3000-5000 W m-1 K-1 at room temperature. Graphene also has a high electrical conductivity. This is because of the one, delocalized electron. Graphene is till now the strongest material ever it can bear up to the tensile strength of 13GigaPascals. Its properties also include being extremely light-weight; a sheet of length one square meter is 0.77mg whereas one square meter of paper is 1000 times heavier if we compare. Graphene is also the bearer of amazing elastic properties; it is able to maintain its initial form even after a large amount of strain is applied. Graphene also holds great optical properties; it can absorb a large 2.3% of white light, this is due to its electron arrangement (having high mobile electrons).
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