This article deals with ‘Graphene.’ This is part of our series on ‘Science and Technology’ which is important pillar of GS-3 syllabus . For more articles , you can click here
What is Graphene?
- Graphene is form of carbon consisting of planar sheets (2D structure) which are one atom thick, with the atoms arranged in a honeycomb-shaped lattice.
Properties of Graphene
- Heat conductivity is 10 times better than Copper
- 200 times stronger than steel
- 1000 times electrical conductivity than Copper wire
- Highly flexible and can flex 20% without damage.
- Transparency is 97% (hence, can be used to make flexible & unbreakable screens)
- High absorption capacity of Electromagnetic Waves
- Has Anti-Bacterial Properties and Graphene Oxide can kill bacteria.
- It is bio-compatible ( ie can hook up with biological cells)
- Making Flexible Screens .
- Thermal management applications .
- Solar cells of high efficiency
- To Recreate Bones as they mimic the environment of the bone.
- Desalination : Graphene can be used in as sheet in process of reverse osmosis. Energy used in reverse osmosis when Graphene is used is 45% less than ordinary process & process will be twice as fast (Note that cost of energy is the most expensive component in whole process)
But issue with graphene is , it is very difficult to make . Presently, large scale studies and experiments are going on to devise a method to make Graphene at large scale at cheap price and out of laboratory conditions.