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Biotech Earth Power Science

Self-Powered Microbial Fuel Cell Produces Hydrogen 58

donberryman writes "Researchers from Penn State have shown how microbial fuel cells can produce hydrogen without the need for an external source of electricity to power the process. It uses reverse-electrodialysis to capture energy from the difference in salinity between salt water and freshwater (abstract). Study co-author Bruce Logan explained the significance of the work: 'The breakthrough here is that we do not need to use an electrical power source anymore to provide a little energy into the system. All we need to do is add some fresh water and some salt water and some membranes, and the electrical potential that is there can provide that power.'"
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Self-Powered Microbial Fuel Cell Produces Hydrogen

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