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Microbes churn out hydrogen at record rate
Date:11/13/2007

ately provides more energy as a fuel than the electricity needed to drive the reactor. Incorporating all energy inputs and outputs, the overall efficiency of the vinegar-fueled system is better than 80 percent, far better than the efficiency for generation of the leading alternative fuel, ethanol.

Even most electrolysis techniques, methods to extract hydrogen from water using electricity, pale in comparison to the new method.

"We can do that by using the bacteria to efficiently extract energy from the organic matter," said Logan. By perfecting the environment for the bacteria to do what they already do in nature, the new approach can be three to ten times more efficient than standard electrolysis.


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Contact: Josh Chamot
jchamot@nsf.gov
703-292-7730
National Science Foundation  
Source:Eurekalert

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