Brush Anode And Tubular Cathode Scale Up Microbial Fuel Cells.

Publication: Space Daily

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COPYRIGHT 2007 Space Daily, Distributed by United Press International.

Byline: Staff Writers

UNION TOWN, Pa., March 23 (SPX) -- A carbon fiber, bottle-brush anode developed by Penn State researchers will provide more than enough surface for bacteria to colonize, for the first time making it possible to use microbial fuel cells for large scale electricity production. In addition, a membrane-tube air cathode, adapted from existing wastewater treatment equipment, will complete the circuit.

"The carbon fiber brushes are electrically conducting, very inexpensive to produce and supply large surface area for the bacterial biofilm attachment," says Bruce E. Logan, the Kappe Professor of Environmental Engineering.

"These anodes can be made by any existing brush manufacturer in any size or shape desired."

Microbial fuel...

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