Thursday, March 24, 2011

Hydrogen Fuel Cells One Step Closer with New Recycling Method


Scientists have demonstrated that a lightweight material, ammonia borane, can feasibly store hydrogen on vehicles. Once the hydrogen is spent, the alternative fuel can be efficiently added back into the material.
"What this paper describes is an efficient way to add the hydrogen back to make the ammonia borane again. And it can be done in a single reactor." Practical, efficient and affordable storage of hydrogen has been one of the challenges in making the powering of electrical motors via hydrogen fuel cells a viable alternative to traditional gasoline powered engines. Benefits of hydrogen fuel cell technology include cleaner air and less dependence on foreign oil. 

The announcement of what scientists call a "fuel regeneration process" overcomes one key hurdle. While there has been much progress toward making the widespread use of hydrogen fuel cell technology practical, Dixon said other challenges remain. "The basic three steps – the initial synthesis, the controlled release of hydrogen, and the regeneration of fuel – are actually in pretty good shape," Dixon said. "The next piece is to get a cheap source of hydrogen that doesn't come from coal or fossil fuels."

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