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| Layer of the graphene Picture 1 |
Kimmo Huosionmaa
Production of the one atomic layer graphite or graphene is very difficult in the real world because the graphite must be cut that way, the only one layer of the carbon atoms will separate from the structure. In theory, the production of that material is very easy. The surface is just painted black with the pencil, and then the outer layer of the atoms will cut off, but the reason why this is very difficult is that the structure of that material is so small. The cutting knife must be put between the atom layers, and then the one layer of those atoms are separated from the bite of the graphite. There is one change to cut off one layer of carbon atoms from the surface, what is covered by graphite.
The thing what might be promising is to use very thin laser ray to cut the outer layer of the carbon off the structure, and if that thing will be working, it will be changed to make very big graphene layers. And if we could make the big layers of the material, what is so hard, that two layers of atoms will stop the bullets, will that make the revolution for buildings and security stuff. The graphene material is very light, and it can be used to cover the windows or balconies with the extremely hard material.
But the problem is that the laser ray must be very thin. But is the laser will use like the planer, would the normal size laser work in this kind of problem. The laser will move forward and backward for planing the outer layer of the graphite. And same time the thickness of the graphite layer is metered with scanning tunnel microscope to prove that there is only one layer of this extremely hard material left. Another way is to use the ionized carbon molecules, what will pull to the surface with the electric field. This looks little bit painting of cars, but in this scenario, the material what will dush to the surface is carbon molecules or extreme small size carbon dust. And after that, the laser might use to make one layer graphite or graphene.
The problem of making the nanotubes is more easy to solve. If the fullerene tubes might not be very small, the carbon might able to steam in the very high temperature and pressure in the surface of the wool fiber. In this reaction the wool fiber will put in the high-pressure chamber, where is methane in the space where is all oxygen removed.
If the oxygen is removed, the wool fiber doesn’t burn. Then the pressure and temperature will rise high enough, that carbon will reduce in the surface of the wool fiber, what can be cooled by pumping the water thru it. But maybe the temperature doesn’t rise too hard that this wool fiber will be melted. When there is no oxygen in the chapel, the carbon won’t start to burn. And maybe that technology allows the future to make very thin but hard carbon fibers, with large-scale mass production.
Sources:
https://www.npr.org/templates/story/story.php?storyId=130344815
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