Hillhater said:
AND all that is before you think about the conversion efficiency of a hydrogen generator or the costs/ practicalities of a plant on that scale !
======================================
Magnet doubles hydrogen yield from water splitting
Aligning the spin states of oxygen intermediates overcomes a bottleneck in electrolysis
by Mark Peplow
JUNE 14, 2019
Using nothing more than a $10 magnet, researchers have doubled the hydrogen output of a water-splitting electrolyzer (Nat. Energy 2019, DOI: 10.1038/s41560-019-0404-4). If the approach can be scaled up, it has the potential to slash the costs of producing hydrogen from water, making the clean-burning fuel greener.
Hydrogen is often touted as a clean fuel because its combustion produces no carbon dioxide or other pollutants, only water. But about half of the world’s hydrogen is made by steam-methane reforming, which is responsible for about 3% of our global CO2 emissions.
Only 4% of hydrogen is made by the electrolysis of water, largely because the process is so expensive. Reducing the cost of electrolysis—or increasing its hydrogen yield—offers a route for the gas to become an economically viable fuel produced by renewable electricity.
Alkaline water electrolysis is the cheaper of the two commercially available technologies and has been used for over 50 years, but it is less efficient than expensive polymer electrolyte membrane systems. “The advantage of alkaline conditions is that you can use really abundant metals in the electrodes,” says José Ramón Galán-Mascarós at the Institute of Chemical Research of Catalonia (ICIQ), who led the magnet research.
=====================
I love these sorts of predictions.
1876, the President of Western Union: “The idea [of the telephone] is idiotic on the face of it. Furthermore, why would any person want to use this ungainly and impractical device when he can send a messenger to the telegraph office and have a clear written message sent to any large city in the United States?”
1889, Thomas Edison: "Fooling around with alternating current is just a waste of time. Nobody will use it, ever."
1895, Lord Kelvin: "Heavier than air flying machines are impossible."
1903, the president of Michigan Savings Bank: “The horse is here to stay but the automobile is only a novelty—a fad.”
1904, a Paris brain specialist: “An auto running at the rate of 80 miles per hour is running without the guidance of the brain, and the many disastrous results are not to be marveled at.”
1910, Harvard astronomer William Pickering: "The popular mind often pictures gigantic flying machines speeding across the Atlantic, carrying innumerable passengers. It seems safe to say that such ideas must be wholly visionary."
1920, New York Times: "A rocket will never be able to leave the Earth's atmosphere."
1946, 20th Century Fox executive: “Television won’t be able to hold on to any market it captures after the first six months. People will soon get tired of staring at a plywood box every night.”
1966, Time Magazine: “Remote shopping, while entirely feasible, will flop—because women like to get out of the house, like to handle the merchandise, like to be able to change their minds.”
1977, Ken Olson of DEC: “There is no reason anyone would want a computer in their home.”
2007, CEO of Microsoft - “There’s no chance that the iPhone is going to get any significant market share. No chance.”
And in my lifetime I've heard that:
Solar will never amount to anything
Space travel will never be cheap, reliable or regular
EV's will never make it. Never!
Computers will never change people's lives. No one wants to stare at a screen and type.
Happy to see so many predictions failing.