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From bacteria to electricity: The future of green energy
Date:4/19/2010

ARLINGTON, Va. Showcasing its energy research initiatives for an Earth Day event on April 22 at the Pentagon, the Office of Naval Research (ONR) will highlight the microbial fuel cell, a device that could revolutionize naval energy use by converting decomposed marine organisms into electricity.

These fuel cells convert naturally occurring fuels and oxidants in the marine environment into electricity, offering a clean, efficient and reliable alternative to batteries and other environmentally harmful fuels.

The fuel cell can be a viable power source for long-term operation of autonomous underwater unmanned vehicles, in-water sensors, and devices used for surveillance and monitoring the ocean environment.

Named as one of TIME magazine's "Top 50 Inventions for 2009," the fuel cell, with its powerful return of clean energy, could reduce carbon emissions in the environment and change the way we fuel our vehicles and supply power to our homes.

"Microbial fuel cell research is a great example of naval needs propelling advanced technology that also has potential benefit to the public" said Chief of Naval Research, Rear Adm. Nevin Carr. "The Secretary of the Navy issued five energy goals to the Department of the Navy last October at ONR's Naval Energy Forum and this fuel cell research will help provide part of the solution."

"Think of it as a battery that runs on mud," ONR Program Manager Dr. Linda Chrisey said. "They are sustainable, environmentally friendly and don't involve hazardous reactants like a regular battery might because they use the natural carbon in the marine environment. For example, we are working on a 4-foot long autonomous underwater vehicle that will settle on the seafloor and recharge its batteries using this fuel cell approach. We are already able to power many types of sensors using microbial fuel cells."

Dr. Leonard Tender, a research chemist in the Center for Bio/Molecular Science and En
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Contact: Peter Vietti
pvietti@navy.mil
703-696-5031
Office of Naval Research
Source:Eurekalert  

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