Feathered Fuel Tank Soaks Up Hydrogen

The gas tank of the future may be full of chicken feathers. Engineers have discovered a way to store large amounts of hydrogen fuel using carbonised downy fluff, which could help pave the way to clean, green cars. A practical hydrogen car has been elusive for decades. Before the announcement this week by University of Delaware engineers, a nonstop trip from Portland to Eugene in a hydrogen car would need a tank bigger than 100 gallons to store liquid or gaseous fuel, even under high pressure. Treated chicken feathers work like a sponge. They soak up large amounts of hydrogen and hold it in a small space so the tank can be a conventional size and the fuel won’t need to held under dangerously high pressures. Hydrogen creates only water vapor when it burns, unlike gasoline that emits carbon dioxide, a culprit in climate change

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