H2Go Power Seeks To Power Drones With Hydrogen

An anonymous reader quotes a report from the BBC: When you think about hydrogen and flight, the image that comes to mind for most is the Hindenburg airship in flames. But in a lab deep in the basement of Imperial College in London, a young team has built what it believes is the future of air travel. H2Go Power is seeking a patent to store the explosive gas cheaply and safely.

Until now, storing hydrogen required ultra-strong and large tanks which could withstand pressures of up to 10,000 pound-force per square inch (psi). That is hundreds of times greater than what you would find in a car tire. But, while studying for her PhD in Cambridge, Dr Enass Abo-Hamed came up with a revolutionary structure which could store hydrogen as a stable solid without compression. “The pressure involved is similar to what you’d get in a coffee machine,” she says. The university paired her with materials scientist, Luke Sperrin, to try to find commercial applications for the innovation — and H2Go Power was born. The company partnered with Canadian hydrogen fuel cell maker Ballard to create a drone which used their reactor to safely store hydrogen for flight. The aluminum reactor weighs less than a bag of sugar and features a small gas cylinder with an intricate network of 3D-printed aluminum tubes inside.

“The hydrogen remains stable and solid in these structures until ‘coolant’ is pumped through the tubes, warming them and releasing hydrogen gas to the drone’s fuel cell,” reports the BBC. “Hydrogen (H2) is pumped into one side of the fuel cell through a catalyst which frees electrons, creating electricity. Oxygen (O) is then pumped into the other side of the fuel cell and combines with the left over, positively-charged hydrogen atoms (H+). The only final waste product is water vapor (H2O).”

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