Graphene, the strongest material on earth, now produced from cookies, roaches and dog feces

Graphene is a material made of carbon. It is a particularly interesting material because in graphene, carbon manages to arrange itself in a sheet just one atom thick (see pic on the left). The material is so thin, that three million sheets of graphene on top of each other would be just 1mm thick. This one-atom thick sheet, densely packed in a honeycomb lattice, has excellent electrical, mechanical and thermal properties that make it the strongest material on earth, an improvement upon and a possible replacement for silicon, and the most conductive material known to man.

In 2004, physicists at the University of Manchester and the Institute for Microelectronics Technology, Chernogolovka, Russia, first isolated individual graphene planes by exfoliating graphite (i.e. the material used for pencils) using adhesive tape. Since 2009 it has been described as the strongest material on earth, 200 times stronger than steel. In 2010, the Nobel Prize in Physics was awarded to Andre Geim and Konstantin Novoselov, “for groundbreaking experiments regarding the two-dimensional material graphene”.

It would take an elephant, balanced on a pencil, to break through a sheet of graphene the thickness of Saran Wrap.

See through: Researchers have created a flexible graphene sheet with silver electrodes printed on it (top) that can be used as a touch screen when connected to control software on a computer (bottom). Credit: Byung Hee Hong, SKKU.

said Professor James Hone of Columbia University in a statement.

As for uses? It can be used for making up new materials and electronic devices. Sort of like plastics are used nowadays but with an extra touch of technology. It could be used for transparent electronics that are stronger, cheaper, and more flexible such as shown on the right. Professor Tour of Rice University said teasingly:

You could theoretically roll up your iPhone and stick it behind your ear like a pencil.

Graphene is usually made up from graphite. But as the demand for cheap and fast large-scale graphene production becomes imminent, it quickly became clear that making graphene by splitting graphite crystals using adhesive tape, had no future.

Now a team of researchers led by Prof Tour, managed at to grow graphene directly on the backside of a copper foil at 1050°C, using six easily obtained, low or negatively valued raw carbon-containing materials used without pre-purification (cookies, chocolate, grass, plastics, roaches, and dog feces). Read the full paper here. Thanks to Anastassia for the story!

Worst comes to worst you just might end up using up that pizza from last night to get a new rollable iPhone. And think twice before you scold your dog again for doing a #2 on the carpet!

Advertisements

Posted on July 31, 2011, in materials, science news. Bookmark the permalink. 1 Comment.

  1. This is associateded with its scent of worry. It plants flag of fragrance on a man hill and raises
    one’s capability to feeling in other instructions.

    With this antiperspirant you are sure of creating 24 Hr dampness and
    also smell protection. The fragrance of the deodorant will certainly make her have flights in her thoughts.

    It is available in full variety, that includes deodorant stick,
    physical body spray, shampoo, shower gel, and also undetectable
    solid. It can likewise be utilized as a foot spray.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: