Graphene is a member of a larger family of structures in which the carbon atoms in flat sheets are joined, forming a hexagonal honeycomb (with an atom at each corner). Many panels located on each other, you get graphite.
When you write with a pen friction with the paper started doing strips, loosely tied together, and deposited in the form of writing on the paper surface. Possibly, we are producing too many invisible layers of graphene. In the laboratory, was obtained with surprising ease, rubbing a microscopic portion of graphite on a silicon chip, which were deposited around a hundred overlapping layers. The silicon can be dissolved in acid or you can use a separate tape sheets. In the latter case, fold the tape so that it sticks to both sides of the flake graphite and opened again, thereby achieving the separation of plates. Repeating the process several times the films obtained are thinner, to get the monolayer graphene one atom thick.
Among the most notable properties of this material include:
- Most Rugged Materials (200 times more than steel).
- High conductivity heat and electricity.
- high elasticity and toughness.
- Graphene can react chemically with other substances to form compounds with different properties, which gives this material of great potential. Supports
- ionizing radiation.
- is very light, such as carbon fiber, but more flexible. Minor
- Joule effect, unless the lead is heated electrons.
- consumes less electricity for the same task than silicon.
Graphene is quite a technological revolution that can be very present in the not too distant future. An alarm clock, a GPS or a laptop with a thickness less than one page can be recharged without external batteries, solar power alone and able to roll on our wrist to stop using it as a clock.
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