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Interesting engineering news and general interest to get you through the week.

A breakthrough in the use of a one-atom thick structure called “graphene”

Clipped to the Drawing Board by John Chadwick

Engineers and scientists at The University of Texas at Austin have achieved a breakthrough in the use of a one-atom thick structure called “graphene” as a new carbon-based material for storing electrical charge in ultracapacitor devices, perhaps paving the way for the massive installation of renewable energies such as wind and solar power.

The researchers believe their breakthrough shows promise that graphene (a form of carbon) could eventually double the capacity of existing ultracapacitors, which are manufactured using an entirely different form of carbon.
“Through such a device, electrical charge can be rapidly stored on the graphene sheets, and released from them as well for the delivery of electrical current and, thus, electrical power,” says Rod Ruoff, a mechanical engineering professor and a physical chemist. “There are reasons to think that the ability to store electrical charge can be about double that of current commercially used materials. We are working to see if that prediction will be borne out in the laboratory.”

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Saturday 25 October, 2008 02:38 AM

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