Sentences with phrase «such microbial fuel cells»
Not exact matches
Previously, researchers have produced hydrogen gas in microbial - powered, batterylike fuel cells, but only when they supplemented the energy produced by the bacteria with electrical energy from external sources — such as that obtained from renewable sources or burning fossil fuels, says Bruce Logan, an environmental engineer at Pennsylvania State University, University Park.
http://www.sciencemag.org/
Such characteristics could prove useful in future microbial fuel cell designs where the device need not always be operational but must survive long periods of hazardous conditions before being used.