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A comment on Buoyant wants to solve middle-mile delivery with cargo airships. Parent comment

Re:Buoyant wants to solve middle-mile delivery with cargo ai... by bombcar on Friday August 27, 2021 @11:54PM (#28335510)
It’s interesting that the answer everyone gives is the least effective and efficient way - electrolysis.

Sulfuric acid and iron into hydrogen is much simpler.

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Re:Buoyant wants to solve middle-mile delivery with cargo ai... by ben_w on Saturday August 28, 2021 @06:24AM (#28336971)
Efficient I can believe, but I’m curious why that’s simpler than electrolysis? I first played with electrolysis when I was nine.
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Re:Buoyant wants to solve middle-mile delivery with cargo ai... by kragen on Saturday August 28, 2021 @10:25AM (#28338328)
Depends on your metric. Sulfuric acid and iron is pretty simple if you don't count the blast furnace. Certainly a lot simpler than a gasoline generator. If you have grid power and a diode, electrolysis gets simpler --- though you probably want at least a transformer. Hydrolith is probably simpler and lighter than sulfuric acid and iron, though.
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Re:Buoyant wants to solve middle-mile delivery with cargo ai... by rini17 on Saturday August 28, 2021 @06:43AM (#28337050)
It's simple but surprisingly fickle, even more if you want industrial amounts of hydrogen safely. This is an example of a home setup and nontrivial considerations that went into it:

https://www.youtube.com/watch?v=d85OX6yEwE0

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