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Graphene; The 21st Century's Wonder Material
Topic Started: Nov 11 2015, 01:21 AM (78 Views)
Brewster
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Fire & Ice Senior Diplomat
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Quote:
 
G R A P H E N E
Have you heard of Sir Andre Geim?

You should have heard of him. In 2004 he, together with his research colleague Sir Konstantin Novoselov, made what is likely to prove the most momentous achievement of the 21st century. They isolated the 2 dimensional material graphene, identified many of its extraordinary properties and subsequently described other 2 dimensional materials. Their work is of such importance that both were awarded the 2010 Nobel Prize in Physics, knighted by the Queen and by the King of the Netherlands and over the past decade have been showered with numerous honours and awards.

Properties

Graphene does not occur naturally. It is produced from pure graphite by stripping away layers of the material until left with a single layer – a feat initially achieved using adhesive tape. It comprises atoms of carbon linked together in a hexagonal pattern forming a sheet one atom (0.35 nm) thick. 1 gram of graphene is sufficient to cover an area of 2,630 square metres and one square metre weighs 0.77 milligrams.

Posted Image
Atomic structure of graphene. Each atom in the hexagon lattice is only 0.14 nm apart, preventing passage of any molecule.


It is a very stable, chemically inert material which has x200 the strength of steel yet is malleable - its surface area can be stretched by 20%. It can be folded and crumpled, vastly increasing its surface area within the confines of a very small space. When coated with Lithium it becomes a superconductor, having no resistance to an electric current at room temperature. Graphene is an excellent thermal conductor and in its pure form is 97.7% transparent.

Inability to produce graphene on an industrial scale initially limited development of technology into an ever-growing range of applications. These problems have now been overcome, even to the extent that a graphene ink has been developed enabling the printing of graphene sheets and other items containing graphene. Sir Andre rightly describes Graphene as the foundation of far reaching disruptive technology. It has the potential to replace and bring about the rapid demise of fossil fuels as an energy source, possibly within a decade and this alone justifies its description as a ‘wonder material’.
Many More Details

This sounds dangerous - their papers should be Subpoena'd immediately.
Can't have Scientists disrupting industry like this... It must be a plot...
Edited by Brewster, Nov 11 2015, 01:24 AM.
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ImaHeadaU
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Thanks for bringing this stuff to my attention. This is exciting technology
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jackd
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Interesting, Brewster, as I watched a tv report on the very same sbject a few days ago. be in
Graphene would be readily available up north of Quebec.
Hydo Québec is already working with this material at their R&D labs near Montreal.
Chineese interests have already bought 70% of graphite mining rights embedded in our basement.

MORE HERE

Hydro Québec /graphene
Edited by jackd, Nov 11 2015, 01:40 AM.
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Thumper
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Canada, the world's Graphene Super Power. Lots of promises here, anything real yet? Better stick with your day jobs for now.
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Stoned
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Brewster
Nov 11 2015, 01:21 AM
Quote:
 
G R A P H E N E
Have you heard of Sir Andre Geim?

You should have heard of him. In 2004 he, together with his research colleague Sir Konstantin Novoselov, made what is likely to prove the most momentous achievement of the 21st century. They isolated the 2 dimensional material graphene, identified many of its extraordinary properties and subsequently described other 2 dimensional materials. Their work is of such importance that both were awarded the 2010 Nobel Prize in Physics, knighted by the Queen and by the King of the Netherlands and over the past decade have been showered with numerous honours and awards.

Properties

Graphene does not occur naturally. It is produced from pure graphite by stripping away layers of the material until left with a single layer – a feat initially achieved using adhesive tape. It comprises atoms of carbon linked together in a hexagonal pattern forming a sheet one atom (0.35 nm) thick. 1 gram of graphene is sufficient to cover an area of 2,630 square metres and one square metre weighs 0.77 milligrams.

Posted Image
Atomic structure of graphene. Each atom in the hexagon lattice is only 0.14 nm apart, preventing passage of any molecule.


It is a very stable, chemically inert material which has x200 the strength of steel yet is malleable - its surface area can be stretched by 20%. It can be folded and crumpled, vastly increasing its surface area within the confines of a very small space. When coated with Lithium it becomes a superconductor, having no resistance to an electric current at room temperature. Graphene is an excellent thermal conductor and in its pure form is 97.7% transparent.

Inability to produce graphene on an industrial scale initially limited development of technology into an ever-growing range of applications. These problems have now been overcome, even to the extent that a graphene ink has been developed enabling the printing of graphene sheets and other items containing graphene. Sir Andre rightly describes Graphene as the foundation of far reaching disruptive technology. It has the potential to replace and bring about the rapid demise of fossil fuels as an energy source, possibly within a decade and this alone justifies its description as a ‘wonder material’.
Many More Details

This sounds dangerous - their papers should be Subpoena'd immediately.
Can't have Scientists disrupting industry like this... It must be a plot...
really interesting here is another link

http://www.newyorker.com/magazine/2014/12/22/material-question
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