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Re:Hydrogen made using rust by clouddrover on Sunday March 08, 2020 @12:45AM (#22516538)
> Fuel cell catalyst material has been cost prohibitive.

Maybe, maybe not. Lots of people have been working on low cost fuel cells:

https://www.greencarcongress.com/2011/04/pani-20110421.html

https://www.greencarcongress.com/2016/01/20160115-udel.html

https://www.greencarcongress.com/2019/12/20191216-suryanto.h...

Toyota thinks they can build fuel cell cars cheaper than battery electrics:

https://www.thedrive.com/tech/26050/exclusive-toyota-hydroge...

> Interesting research but I don’t understand the commercial value.

They are more uses for hydrogen than just fueling vehicles. For example, you can use hydrogen in steel production:

https://www.en-former.com/en/hydrogen-revolution-steel-produ...

Re:Hydrogen made using rust by Ericson2314 on Sunday March 08, 2020 @02:28PM (#22519630)
> That came when in 2003 Hirose’s boss Mitsuhisa Kato told him that “it’s time to join the enemy” and switch from hybrid to working on hydrogen.

Hahahaha