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Emeraldstorm3 t1_j6nmfzs wrote

Cool, cool. And how much waste does this produce? How much CO2?

Because getting hydrogen from water isn't really the problem. It's that it's wasteful and polluting to produce and transport and potentially dangerous to store.

I know it's at the behest of oil execs wanting to find something they can corner the market on (the production and supply side of it) to stay wealthy as the world tries to get out of their grips... but even so, why are we still wasting time on hydrogen fuel?

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Kronos5678 t1_j6nzwog wrote

It's got a higher energy density than lithium ion batteries, and as it can technically be produced without emitting hydrogen, it's a good fuel for planes etc that can't really carry really have batteries . And in a future with abundant fusion energy, electrolysis could be feasible, allowing for green air travel that doesn't have to stop frequently to recharge/swap out batteries

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Emeraldstorm3 t1_j6oihf7 wrote

If we get to a point where we aren't emitting greenhouse gases in order to get hydrogen from water, that might help... for some niche applications, such as airlines. Logistics is still a problem as is volitility and the energy required to store it under explosive pressure so that it has a decent energy density. And that's only if we don't have better options for airplanes (or maybe cargo ships) by the time creating hydrogen isn't as much of a pollutant. And assuming battery technology doesn't improve.

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Kronos5678 t1_j6ojcte wrote

I wouldn't say airplanes are really a niche application

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