Producing hydrogen out of moist air, directly. Could be a game changer. University of Melbourne, Australia:
"Researchers say their prototype produces hydrogen with greater than 99% purity and works in air as dry as 4% relative humidity"
https://www.theguardian.com/environm...droidApp_Other
"The device is estimated to produce up to 93 litres of hydrogen a square metre an hour. “If you have 10 sq metres of this unit, you can power a whole house … to replace your consumption of natural gas at home for cooking and heating,” Li said."
Burning hydrogen just creates warm water vapour as exhaust, also all common fuel engines are capable of using hydrogen instead of fuel (not Diesels of course). Need another tank and a modified ignition and that's it. Better than electricity when you look at accumulated energy ballance.
Some obstacles, apart from directly using it in a house (as long as the sun shines and humidity is more than 4 percent in the air), you will have to store it. So you need a pump for compressing, and a tank.
Still, this is a great achievement!