Blender whips up graphene | Science News

Support Science Journalism

Science News is a nonprofit.

Support us by subscribing now.

News in Brief

Blender whips up graphene

New recipe makes cheap, easy nanomaterials

1:00pm, April 20, 2014

SUPER SHEET  Simple blender blades can slough off graphene, single-atom-thick layers of carbon, from  graphite. Graphene’s carbon atoms, depicted as bright blobs in this scanning transmission electron microscope image, form a chicken wire pattern.

With soap, water, graphite and the whirl of a blender’s blades, researchers can serve up big batches of graphene, a material that shows promise for use in myriad high-tech applications.

Graphene sheets are single-atom-thick layers of carbon that, when stacked, make up graphite.  Individual sheets are sturdy, transparent and excellent conductors of electricity, giving them enormous potential for use in plastics, superconductors and many other materials. But making large amounts is tricky.

Recipes that rely on chemicals to peel wafer-thin layers off graphite run the risk of creating chinks in graphene’s chicken wire arrangement of atoms. Ultrasonic waves can shimmy the layers apart but work only for small batches.

Researchers led by Jonathan Coleman of Trinity College Dublin found that simple blenders can form graphene sheets from hundreds of liters or more of graphite slurry without disturbing the atomic latticework.

As some of the slurry is

This article is only available to Science News subscribers. Already a subscriber? Log in now.
Or subscribe today for full access.

Get Science News headlines by e-mail.

More from Science News

From the Nature Index Paid Content