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MIT scientists have discovered a new way to produce hydrogen fuel, using just soda cans, seawater and coffee grounds | The team says the chemical reaction could be put to work powering engines or fuel cells in marine vehicles that suck in seawater.
MIT scientists have discovered an intriguing new way to produce hydrogen fuel, using just soda cans, seawater and coffee grounds. The team says the chemical reaction could be put to work powering engines or fuel cells in marine vehicles that suck in seawater.
Previous studies have found that mixing in other metals like gallium can take the brakes off, by breaking down the aluminum oxide layer as it forms. “This is very interesting for maritime applications like boats or underwater vehicles because you wouldn’t have to carry around seawater – it’s readily available,” said Aly Kombargi, lead author of the study. The first test of the idea will be a small underwater glider which, according to their calculations, could run for up to 30 days straight by pumping seawater from its surroundings through a reactor holding about 40 lb (18 kg) of aluminum pellets.
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